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Seedance 2.5 is ByteDance Seed’s audio-video joint-generation model. It builds on Seedance 2.0 with longer storytelling, richer multimodal references and more precise editing. A text brief can define a scene, while images, video and audio communicate appearance, movement, camera language and sound. The result is audiovisual footage for a film concept, product story, music video, previsualisation or short narrative.

A complete scene in one generation The producer extends the single-pass generation ceiling from the earlier 15 seconds to up to 30 seconds. That gives a brief room for a setup, development and conclusion, with several connected shots or a continuous camera move. Its stage-performance example follows a singer from a dressing room through a corridor and onto the stage, rather than showing only the arrival. Describe the sequence of actions and the camera’s route in their intended order. For a product story, plan the reveal, demonstration and closing composition so that each beat contributes something visible.

Continuing existing footage Seedance 2.5 can extend a clip forwards or backwards, using the established characters, environment, motion and camera direction as continuity cues. A forward continuation describes what happens after the final moment; a backward continuation describes the lead-in to the opening. Supply the existing footage and explain the new action, setting change or camera move. Review the join as well as the new segment, including subject appearance, sound and the direction of movement. The manufacturer’s launch discusses repeated extension, while its model page describes two extension steps; the usable extension budget belongs to the specific workflow rather than a universal unlimited-video promise.

Image, video and audio references The announced reference budget is up to 50 assets in one generation: 30 images, 10 video clips and 10 audio clips. Images can establish characters, products, locations, props or style. Videos can communicate performance, pacing and camera movement. Audio can supply dialogue, music, atmosphere or rhythm. Assign each asset a clear role: one reference for the subject, another for the environment, a video for the camera move and an audio clip for timing. These materials guide interpretation; they do not guarantee that every detail is reproduced exactly.

Clay-render guidance and performance blocking A textureless 3D scene can define spatial layout, poses, movement paths and camera angles before the final appearance is rendered. The producer demonstrates using this clay-render structure together with a separate image for character design, materials, colour and atmosphere. This is useful for an animation or assembly visual whose staging matters more than a loose style reference. State which source controls the blocking and which controls the look. The model also uses spatial cues to guide light direction, colour temperature, intensity and shadow placement.

Timestamp edits and camera control Seedance 2.5 supports targeting a time span during generation and revising characters, actions or story elements in an existing clip. Timestamp-based editing can target both audio and visual content; identify the time interval and the element to revise. The manufacturer demonstrates green-screen background replacement, reference-based edits and changing the camera movement while retaining the scene’s action and style. An edit brief should identify the source clip, the interval, the element to change and the continuity to preserve. For example, describe a lighting or background change over one segment instead of asking to redesign the entire film. After the edit, inspect the moments before and after the interval as well as the revised content.

Audiovisual output and multilingual creation The producer’s product specification describes 4–30-second generation at 480p, 720p or 1080p, 24 FPS, with MP4 or MOV output. Its official introduction describes native support for more than 10 languages and dialogue-led creation. These are manufacturer capabilities and format choices; they do not define an Ailoot file-input, duration or output-format contract. For dialogue-led work, specify the intended speech and its relationship to the action, then have a fluent speaker review the wording and pronunciation before using a localised version.

Applications and substantive limits The model is useful for campaign concepts, product showcases, character-led stories and realistic previews from reference footage or simple 3D staging. The manufacturer also demonstrates educational explanations and manufacturing or assembly visuals. Generated instructional or simulated footage still needs review against the real process being illustrated. The release explicitly identifies complex-motion physics and stable interactions among multiple subjects as areas for further improvement. Check contact between hands and objects, group interactions, movement paths, character consistency and sound-to-image timing across the entire clip. A strong opening frame does not establish that the complete sequence follows the brief.

", "aboutText": "Seedance 2.5 is ByteDance Seed’s audio-video joint-generation model. It builds on Seedance 2.0 with longer storytelling, richer multimodal references and more precise editing. A text brief can define a scene, while images, video and audio communicate appearance, movement, camera language and sound. The result is audiovisual footage for a film concept, product story, music video, previsualisation or short narrative.\n\nA complete scene in one generation\nThe producer extends the single-pass generation ceiling from the earlier 15 seconds to up to 30 seconds. That gives a brief room for a setup, development and conclusion, with several connected shots or a continuous camera move. Its stage-performance example follows a singer from a dressing room through a corridor and onto the stage, rather than showing only the arrival. Describe the sequence of actions and the camera’s route in their intended order. For a product story, plan the reveal, demonstration and closing composition so that each beat contributes something visible.\n\nContinuing existing footage\nSeedance 2.5 can extend a clip forwards or backwards, using the established characters, environment, motion and camera direction as continuity cues. A forward continuation describes what happens after the final moment; a backward continuation describes the lead-in to the opening. Supply the existing footage and explain the new action, setting change or camera move. Review the join as well as the new segment, including subject appearance, sound and the direction of movement. The manufacturer’s launch discusses repeated extension, while its model page describes two extension steps; the usable extension budget belongs to the specific workflow rather than a universal unlimited-video promise.\n\nImage, video and audio references\nThe announced reference budget is up to 50 assets in one generation: 30 images, 10 video clips and 10 audio clips. Images can establish characters, products, locations, props or style. Videos can communicate performance, pacing and camera movement. Audio can supply dialogue, music, atmosphere or rhythm. Assign each asset a clear role: one reference for the subject, another for the environment, a video for the camera move and an audio clip for timing. These materials guide interpretation; they do not guarantee that every detail is reproduced exactly.\n\nClay-render guidance and performance blocking\nA textureless 3D scene can define spatial layout, poses, movement paths and camera angles before the final appearance is rendered. The producer demonstrates using this clay-render structure together with a separate image for character design, materials, colour and atmosphere. This is useful for an animation or assembly visual whose staging matters more than a loose style reference. State which source controls the blocking and which controls the look. The model also uses spatial cues to guide light direction, colour temperature, intensity and shadow placement.\n\nTimestamp edits and camera control\nSeedance 2.5 supports targeting a time span during generation and revising characters, actions or story elements in an existing clip. Timestamp-based editing can target both audio and visual content; identify the time interval and the element to revise. The manufacturer demonstrates green-screen background replacement, reference-based edits and changing the camera movement while retaining the scene’s action and style. An edit brief should identify the source clip, the interval, the element to change and the continuity to preserve. For example, describe a lighting or background change over one segment instead of asking to redesign the entire film. After the edit, inspect the moments before and after the interval as well as the revised content.\n\nAudiovisual output and multilingual creation\nThe producer’s product specification describes 4–30-second generation at 480p, 720p or 1080p, 24 FPS, with MP4 or MOV output. Its official introduction describes native support for more than 10 languages and dialogue-led creation. These are manufacturer capabilities and format choices; they do not define an Ailoot file-input, duration or output-format contract. For dialogue-led work, specify the intended speech and its relationship to the action, then have a fluent speaker review the wording and pronunciation before using a localised version.\n\nApplications and substantive limits\nThe model is useful for campaign concepts, product showcases, character-led stories and realistic previews from reference footage or simple 3D staging. The manufacturer also demonstrates educational explanations and manufacturing or assembly visuals. Generated instructional or simulated footage still needs review against the real process being illustrated. The release explicitly identifies complex-motion physics and stable interactions among multiple subjects as areas for further improvement. Check contact between hands and objects, group interactions, movement paths, character consistency and sound-to-image timing across the entire clip. A strong opening frame does not establish that the complete sequence follows the brief.", "editorialOverlay": { "copy_fields": null, "copy_sha256": null, "copy_source": null, "html_sha256": "795864177a853f71a59f7b10d66a5216c2726b1b6d739c7f8363af262fe4b78e", "module_sha256": "ee9dc1c50b1e6a8fb7fa062030fcb4646b9aaaeb08be513b723a5a92a7290f06", "raw_model_unchanged": true, "schema": "ailoot-native-model-editorial-v1" }, "locale": "en", "methods": [ { "html": "
•

ByteDance: Seedance 2.5

ByteDance /bytedance/seedance-2.5

Overview

Seedance 2.5 creates audio and video together for longer scenes, rich image/video/audio references and targeted edits. ByteDance Seed documents up to 30-second generation, clay-render guidance, controlled camera work and continuation of existing footage.

Accepted inputs
Text · Images · Audio
Results
Video
About the model

This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.

Seedance 2.5 is ByteDance Seed’s audio-video joint-generation model. It builds on Seedance 2.0 with longer storytelling, richer multimodal references and more precise editing. A text brief can define a scene, while images, video and audio communicate appearance, movement, camera language and sound. The result is audiovisual footage for a film concept, product story, music video, previsualisation or short narrative.

A complete scene in one generation The producer extends the single-pass generation ceiling from the earlier 15 seconds to up to 30 seconds. That gives a brief room for a setup, development and conclusion, with several connected shots or a continuous camera move. Its stage-performance example follows a singer from a dressing room through a corridor and onto the stage, rather than showing only the arrival. Describe the sequence of actions and the camera’s route in their intended order. For a product story, plan the reveal, demonstration and closing composition so that each beat contributes something visible.

Continuing existing footage Seedance 2.5 can extend a clip forwards or backwards, using the established characters, environment, motion and camera direction as continuity cues. A forward continuation describes what happens after the final moment; a backward continuation describes the lead-in to the opening. Supply the existing footage and explain the new action, setting change or camera move. Review the join as well as the new segment, including subject appearance, sound and the direction of movement. The manufacturer’s launch discusses repeated extension, while its model page describes two extension steps; the usable extension budget belongs to the specific workflow rather than a universal unlimited-video promise.

Image, video and audio references The announced reference budget is up to 50 assets in one generation: 30 images, 10 video clips and 10 audio clips. Images can establish characters, products, locations, props or style. Videos can communicate performance, pacing and camera movement. Audio can supply dialogue, music, atmosphere or rhythm. Assign each asset a clear role: one reference for the subject, another for the environment, a video for the camera move and an audio clip for timing. These materials guide interpretation; they do not guarantee that every detail is reproduced exactly.

Clay-render guidance and performance blocking A textureless 3D scene can define spatial layout, poses, movement paths and camera angles before the final appearance is rendered. The producer demonstrates using this clay-render structure together with a separate image for character design, materials, colour and atmosphere. This is useful for an animation or assembly visual whose staging matters more than a loose style reference. State which source controls the blocking and which controls the look. The model also uses spatial cues to guide light direction, colour temperature, intensity and shadow placement.

Timestamp edits and camera control Seedance 2.5 supports targeting a time span during generation and revising characters, actions or story elements in an existing clip. Timestamp-based editing can target both audio and visual content; identify the time interval and the element to revise. The manufacturer demonstrates green-screen background replacement, reference-based edits and changing the camera movement while retaining the scene’s action and style. An edit brief should identify the source clip, the interval, the element to change and the continuity to preserve. For example, describe a lighting or background change over one segment instead of asking to redesign the entire film. After the edit, inspect the moments before and after the interval as well as the revised content.

Audiovisual output and multilingual creation The producer’s product specification describes 4–30-second generation at 480p, 720p or 1080p, 24 FPS, with MP4 or MOV output. Its official introduction describes native support for more than 10 languages and dialogue-led creation. These are manufacturer capabilities and format choices; they do not define an Ailoot file-input, duration or output-format contract. For dialogue-led work, specify the intended speech and its relationship to the action, then have a fluent speaker review the wording and pronunciation before using a localised version.

Applications and substantive limits The model is useful for campaign concepts, product showcases, character-led stories and realistic previews from reference footage or simple 3D staging. The manufacturer also demonstrates educational explanations and manufacturing or assembly visuals. Generated instructional or simulated footage still needs review against the real process being illustrated. The release explicitly identifies complex-motion physics and stable interactions among multiple subjects as areas for further improvement. Check contact between hands and objects, group interactions, movement paths, character consistency and sound-to-image timing across the entire clip. A strong opening frame does not establish that the complete sequence follows the brief.

Available in Ailoot · inputs & methods

Ailoot Ultra · Video POST /v1/videos
Input types
text, image, audio
Output types
video
Output format
original MP4 bytes; no normalization/transcode
FieldTypeRequirementValues & limitsDefault
FieldmodelTypestringRequirementRequiredValues & limits
bytedance/seedance-2.5
Default—
FieldpromptTypestringRequirementRequiredValues & limitsDefault—
FielddurationTypeintegerRequirementRequiredValues & limits
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
Minimum: 1
Maximum: 600
Default—
FieldresolutionTypestringRequirementOptionalValues & limits
480p, 720p
Default—
Fieldaspect_ratioTypestringRequirementOptionalValues & limits
16:9, 4:3, 1:1, 3:4, 9:16, 21:9
Default—
Fieldgenerate_audioTypebooleanRequirementOptionalValues & limits
false, true
Conditions: Omitting generate_audio selects the audio-enabled price; false selects the no-audio price. Check has_audio in the result to see whether an audio track was returned.
Default—
Fieldframe_imagesTypearrayRequirementOptionalValues & limits
Minimum items: 1
Maximum items: 2
Input content: Array of frame objects. Each has type=image_url, image_url containing url and frame_type=first_frame or last_frame. Each role appears once at most. Use public HTTPS URLs.
Exact keys: type, image_url, frame_type
Conditions: These keys apply to each frame object. Omit frame_images for a text-only request.
Default—
Fieldinput_referencesTypearrayRequirementOptionalValues & limits
Input content: Array of image or audio reference objects. Set type to image_url or audio_url, and supply the matching URL object containing url. Video references remain unpriceable.
Conditions: Omit frame_images to use reference mode. Use public HTTPS URLs.
Default—
FieldsizeTypestringRequirementOptionalValues & limits
854x480, 752x560, 640x640, 560x752, 480x854, 992x432, 1280x720, 1112x834, 960x960, 834x1112, 720x1280, 1470x630
Pattern: ^[1-9][0-9]*x[1-9][0-9]*$
Conditions: For listed sizes other than 1280x720, omit aspect_ratio. You can combine 1280x720 with 16:9. If you provide resolution, it must match the selected size’s 480p or 720p tier.
Default—
FieldseedTypeintegerRequirementOptionalValues & limits
Minimum: -9,223,372,036,854,775,808
Maximum: 9,223,372,036,854,775,807
Default—
Fieldcallback_urlTypestringRequirementOptionalValues & limits
Pattern: ^https://
Default—
Fieldsession_idTypestringRequirementOptionalValues & limitsDefault—
FieldtraceTypeobjectRequirementOptionalValues & limitsDefault—
FielduserTypestringRequirementOptionalValues & limitsDefault—
Input material combinations

Text to video · A written prompt. · Required: model, prompt, duration

Provide a text prompt and a supported whole-second duration. Use an exact listed size, or a resolution and aspect ratio that resolve to listed dimensions.

model: Type: string · bytedance/seedance-2.5

prompt: Type: string · Maximum UTF-8 bytes: 10,000 · Non-whitespace required: Yes

Image to video · A written prompt and a frame image. · Required: model, prompt, duration, frame_images

frame_images is an array of objects with type=image_url, image_url containing url, and frame_type. Use a public HTTPS image URL; first_frame and last_frame may each appear once. Use a listed output size or compatible dimensions. Do not add video references.

Exact keys: type, image_url, frame_type

model: Type: string · bytedance/seedance-2.5

prompt: Type: string · Maximum UTF-8 bytes: 10,000 · Non-whitespace required: Yes

Reference to video · A written prompt and image or audio references. · Required: model, prompt, duration, input_references

input_references is an array. Each object has type=image_url or type=audio_url and a matching URL object containing url. Use public HTTPS links. Omit frame_images to select reference mode. Video references cannot be priced.

model: Type: string · bytedance/seedance-2.5

prompt: Type: string · Maximum UTF-8 bytes: 10,000 · Non-whitespace required: Yes

Method parameters and lifecycle
ParameterContract
Parametercontent_typeContractapplication/json
ParameterrequiredContractmodel, prompt, duration
Parametermaterial_typesContracttext, image, audio
Parameteradditional_propertiesContractfalse
Parameteroptional_controlsContractresolution, aspect_ratio, generate_audio, frame_images, input_references, size, seed, callback_url, session_id, trace, user

Lifecycle: submit_once_poll_original

GET /v1/videos/{public_id}

GET /v1/videos/{public_id}/content

Pricing

How the final charge is calculated

The displayed rates estimate the cost before generation. The final charge is calculated from the cost recorded for the original generation. Measured output duration and forecast quantities are not the final billable quantity.

Tariff references do not add request options. Supported parameters are listed for the selected method.

Fast mode
Not specified When fast mode is selected
Flex mode
Not specified When flex mode is selected
Maximum reasoning effort
Not specified When maximum reasoning effort uses the default adjustment

Estimated rates for comparison

Prices by configuration

Match each charge to the conditions shown. Use one rate for each set of alternative configurations.

ConfigurationRate scheduleForecast quantityBilling unitBilling conditionsCharge
ConfigurationBase token ratesRate scheduleBase rateForecast quantity—Billing unit—Billing conditions—Charge
Input · Input tokens · Estimate for comparison only — / 1K tokens
Output · Output tokens · Estimate for comparison only — / 1K tokens
Input · Cache read · Estimate for comparison only — / 1K tokens
Input · Cache write · Estimate for comparison only — / 1K tokens
Input · Cache write, 1 hour · Estimate for comparison only — / 1K tokens
ConfigurationVideo-token priceRate schedule—Forecast quantity—Billing unitper 1,000 video tokensBilling conditionsNo additional condition is declared in this pricing key.Charge
Output · Video-token price · Estimate for comparison only $0.0214 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

ConfigurationVideo-token priceRate schedule—Forecast quantity—Billing unitper 1,000 video tokensBilling conditionsinput: with_video_inputCharge
reference · Video-token price · Estimate for comparison only $0.0128 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

ConfigurationVideo-token priceRate schedule—Forecast quantity—Billing unitper 1,000 video tokensBilling conditionsaudio: without_audioCharge
Output · Video-token price · Estimate for comparison only $0.0214 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

ConfigurationEstimated generation costRate schedule—Forecast quantityone generation estimateBilling unit—Billing conditions—Charge
Output · Estimated generation cost · Estimate for comparison only $0.822402 estimate before generation

This estimate is not an additional charge or a fixed rate for the completed generation.

Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →

Reference tariff details

Model-level reference schedules do not change method selection, quotes or charges. Active charges use the selected Ailoot method rates.

Video configuration price references

Prices by configuration

Match each charge to the conditions shown. Use one rate for each set of alternative configurations.

ConfigurationBilling conditionsCharge
ConfigurationVideo-token priceBilling conditionsNo additional condition is declared in this pricing key.Charge
Output · Video-token price $0.0214 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

ConfigurationVideo-token priceBilling conditionsaudio: without_audioCharge
Output · Video-token price $0.0214 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

ConfigurationVideo-token priceBilling conditionsinput: with_video_inputCharge
reference · Video-token price $0.0128 per 1,000 video tokens

The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.

Example requests

Ailoot Ultra · Video

set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\npython3 - <<'PY_REQUEST'\nfrom pathlib import Path\nPath('request.json').write_text('{"model":"bytedance/seedance-2.5","prompt":"A serene mountain landscape at sunset","duration":4,"resolution":"480p","size":"854x480","generate_audio":false}', encoding='utf-8')\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/videos \\\n  -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \\\n  --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('result.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n

Receive and save results

Ailoot Ultra · Video

signed owned content URLs

Check job status
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\npython3 - <<'PY_STATUS_URL'\nimport json\nfrom pathlib import Path\nfrom urllib.parse import quote\nr=json.loads(Path('result.json').read_text())\nif not isinstance(r.get('id'),str) or not r['id']:raise SystemExit('Keep the original response and headers for reconciliation; no returned ID')\nPath('status-url.txt').write_text('https://api.ailoot.ai/v1/videos/'+quote(r['id'],safe=''))\nPY_STATUS_URL\ncurl --fail-with-body --silent --show-error "$(cat status-url.txt)" \\\n  -H "Authorization: Bearer $AILOOT_API_KEY" -D status-headers.txt -o status.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('status.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n
Other content reads
set -eu\n: "${AILOOT_API_KEY:?Set your Ailoot API key}"\nexport AILOOT_API_KEY\npython3 - <<'PY_ASSETS'\nimport json,os,subprocess\nfrom pathlib import Path\nfrom urllib.parse import urljoin,urlsplit\nr=json.loads(Path('status.json').read_text())\nif r.get('status')!='completed':raise SystemExit('Keep the original ID and read its status; never recreate an unknown job')\nif not isinstance(r.get('data'),list) or not r['data']:raise SystemExit('Keep the complete original status; no completed outputs supplied')\nurls=[]\nfor i,u in enumerate(r.get('data',[])):\n    if not isinstance(u,str):raise SystemExit('Keep the original response; unexpected asset shape')\n    urls.append((str(i),u))\nfor label,path in urls:\n    u=urljoin('https://api.ailoot.ai',path);z=urlsplit(u)\n    if z.scheme!='https' or z.netloc!='api.ailoot.ai' or z.username or z.password:raise SystemExit('Use the actual returned Ailoot owned content URL')\n    target=Path('owned-'+label+'.bin')\n    subprocess.run(['curl','--fail-with-body','--silent','--show-error',u,'-H','Authorization: Bearer '+os.environ['AILOOT_API_KEY'],'-D',str(target)+'.headers','-o',str(target)],check=True)\nprint('All returned owned URLs saved; complete metadata, timing and usage remain in the JSON.')\nPY_ASSETS\n
Keep all completed results

Save every completed video or returned file; retrieve every actual returned asset URL.

Keep every actual owned output and its returned measured metadata.

If the original response needs checking

503 result_pending_check + originalid + X-Should-Retry:false; never replay original

Response fields
FieldTypeMeaning
FieldindexTypeintegerMeaningZero-based position of this video in the outputs list.
Fieldcontent_urlTypestringMeaningSigned HTTPS download URL for this completed video.
Fieldsha256Typestring | nullMeaningSHA-256 digest of the original video bytes; null if unavailable.
Fieldsize_bytesTypeinteger | nullMeaningSize of the original video file in bytes; null if unavailable.
Fieldduration_msTypeinteger | nullMeaningMeasured video duration in milliseconds; null if unavailable.
FieldwidthTypeinteger | nullMeaningVideo width in pixels; null if unavailable.
FieldheightTypeinteger | nullMeaningVideo height in pixels; null if unavailable.
Fieldvideo_codecTypestring | nullMeaningVideo codec identifier; null if not recorded.
Fieldhas_audioTypeboolean | nullMeaningWhether the video contains an audio track; null if not measured.
Fieldaudio_codecTypestring | nullMeaningAudio codec identifier; null when no identifier is recorded.
Errors and next steps
ResponseConditionNext step
Response404 · not_found_errorConditionVideo access is unavailable, or this video ID was not found.Next stepCheck video access. For an existing video, use its original public ID and the same API key.
Response401 · authentication_errorConditionThe API key does not match the authenticated account.Next stepCheck your API key and account access before submitting.
Response400 · invalid_request_errorConditionThe request could not be read, or the download index is invalid.Next stepCorrect the request body. For a download, choose an output index returned by the original task.
Response422 · price_unavailableConditionThe selected video configuration cannot be priced.Next stepChoose a supported video configuration and complete its required options before submitting a corrected request.
Response422 · invalid_request_errorConditionA video input or original continuation task is invalid.Next stepUse valid HTTPS inputs. For continuation, use your completed original public video ID with the same API key.
Response402 · billing_errorConditionThe available balance or limits do not allow a reservation.Next stepCheck your available balance and limits before sending a new request.
Response503 · server_errorConditionVideo verification, storage or service access is temporarily unavailable.Next stepWait for service availability. If you already have a video ID, check that original task instead of creating another generation.
Response503 · result_pending_checkConditionThe original video result and charge need checking.Next stepKeep the returned video ID and check that task. Do not send a replacement generation request while it is being checked.
Response503 · owned_result_unavailableConditionThe existing video download is temporarily unavailable.Next stepCheck the same video task later and download its existing output. A new generation creates a separate operation.
Response409 · video_not_readyConditionThe video content has not been published.Next stepCheck the original task status. Download after it reports completed; if it reports failed, follow its charge-check notice.

Aliases

Model aliases

Ailoot Ultra bytedance/seedance-2.5

Method path aliases

Use the method paths shown above.

Related caller IDs

bytedance/seedance-2.5

", "method_identity": { "effective_request_model_id": "bytedance/seedance-2.5", "fmt": "videos", "http": "POST", "path": "/v1/videos", "request_model_id": "bytedance/seedance-2.5", "route_label": "Ultra" }, "method_key": "Ultra|videos|/v1/videos|bytedance%2Fseedance-2.5", "ordinal": 0, "rawMethod": { "available": null, "billing_basis": { "basis": "original_invoice_usd", "description": "The displayed rates estimate the cost before generation. The final charge is calculated from the cost recorded for the original generation. Measured output duration and forecast quantities are not the final billable quantity.", "forecast_quantity_is_estimate": true, "physical_output_is_billable_quantity": false, "version": "original_invoice_usd_v1" }, "cache_read": null, "cache_write": null, "cache_write_1h": null, "contract": { "data": { "all_results": "Keep every actual owned output and its returned measured metadata.", "defaults": { "aspect_ratio": null, "duration": null, "generate_audio": "endpoint capability flag when published; omitted unknown stays unknown; never guarantees audio track", "resolution": null, "seed": null, "size": null, "wire_omissions_preserved": true }, "errors": [ { "condition": "Video access is unavailable, or this video ID was not found.", "http_status": 404, "public_identifier_field": "error.type", "recovery": "Check video access. For an existing video, use its original public ID and the same API key.", "type": "not_found_error" }, { "condition": "The API key does not match the authenticated account.", "http_status": 401, "public_identifier_field": "error.type", "recovery": "Check your API key and account access before submitting.", "type": "authentication_error" }, { "condition": "The request could not be read, or the download index is invalid.", "http_status": 400, "public_identifier_field": "error.type", "recovery": "Correct the request body. For a download, choose an output index returned by the original task.", "type": "invalid_request_error" }, { "condition": "The selected video configuration cannot be priced.", "http_status": 422, "public_identifier_field": "error.type", "recovery": "Choose a supported video configuration and complete its required options before submitting a corrected request.", "type": "price_unavailable" }, { "condition": "A video input or original continuation task is invalid.", "http_status": 422, "public_identifier_field": "error.type", "recovery": "Use valid HTTPS inputs. For continuation, use your completed original public video ID with the same API key.", "type": "invalid_request_error" }, { "condition": "The available balance or limits do not allow a reservation.", "http_status": 402, "public_identifier_field": "error.type", "recovery": "Check your available balance and limits before sending a new request.", "type": "billing_error" }, { "condition": "Video verification, storage or service access is temporarily unavailable.", "http_status": 503, "public_identifier_field": "error.type", "recovery": "Wait for service availability. If you already have a video ID, check that original task instead of creating another generation.", "type": "server_error" }, { "code": "result_pending_check", "condition": "The original video result and charge need checking.", "http_status": 503, "public_identifier_field": "error.code", "recovery": "Keep the returned video ID and check that task. Do not send a replacement generation request while it is being checked.", "type": "server_error" }, { "code": "owned_result_unavailable", "condition": "The existing video download is temporarily unavailable.", "http_status": 503, "public_identifier_field": "error.code", "recovery": "Check the same video task later and download its existing output. A new generation creates a separate operation.", "type": "server_error" }, { "condition": "The video content has not been published.", "http_status": 409, "public_identifier_field": "error.type", "recovery": "Check the original task status. Download after it reports completed; if it reports failed, follow its charge-check notice.", "type": "video_not_ready" } ], "hints": [ "No null values or duplicate keys at any JSON object level", "No duration/resolution/aspect default is inserted", "Prompt required for all21 despite broader official image-only schema", "A request must also pass model membership, exact price card, SKU selection and frozen quote construction", "Non-string known trace fields reject; other trace keys retain arbitrary JSON", "No n/output-count/client price fields accepted", "Provider passthrough disabled for all21; feed allowlist names do not supply provider slug/value contract" ], "ignored_fields": [], "lifecycle": { "cancel_endpoint": null, "content": [ { "http": "GET", "path": "/v1/videos/{public_id}/content", "query": { "index": "actual output index" } } ], "create": { "http": "POST", "path": "/v1/videos" }, "mode": "submit_once_poll_original", "public_id": "video_; owner user/key/group scope", "status": [ { "http": "GET", "path": "/v1/videos/{public_id}" } ], "submit_status": 202, "terminal_failure_public": "200 failed + charge_pending_check=true; inspect original operation", "terminal_provider_states": [ "failed", "cancelled", "expired" ], "unknown": "503 result_pending_check + originalid + X-Should-Retry:false; never replay original" }, "material_combinations": [ { "mode": "text_to_video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "Provide a text prompt and a supported whole-second duration. Use an exact listed size, or a resolution and aspect ratio that resolve to listed dimensions.", "required": [ "model", "prompt", "duration" ], "required_material": "A written prompt." }, { "exact_keys": [ "type", "image_url", "frame_type" ], "mode": "image_to_video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "frame_images is an array of objects with type=image_url, image_url containing url, and frame_type. Use a public HTTPS image URL; first_frame and last_frame may each appear once. Use a listed output size or compatible dimensions. Do not add video references.", "required": [ "model", "prompt", "duration", "frame_images" ], "required_material": "A written prompt and a frame image." }, { "mode": "Reference to video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "input_references is an array. Each object has type=image_url or type=audio_url and a matching URL object containing url. Use public HTTPS links. Omit frame_images to select reference mode. Video references cannot be priced.", "required": [ "model", "prompt", "duration", "input_references" ], "required_material": "A written prompt and image or audio references." } ], "operation_modes": [ "text_to_video", "image_to_video_frame_images", "reference_to_video" ], "outputs": { "content_range_supported": true, "every_actual_output": true, "family": "video", "fields": [ { "condition": "Always present for each completed output.", "description": "Zero-based position of this video in the outputs list.", "field_path": "outputs[].index", "json_schema": { "type": "integer" }, "name": "index", "nullable": false, "type": "integer" }, { "condition": "Present after the owned result is available and a signed URL is created.", "description": "Signed HTTPS download URL for this completed video.", "field_path": "outputs[].content_url", "json_schema": { "type": "string" }, "name": "content_url", "nullable": false, "type": "string" }, { "condition": "A nonempty recorded digest is returned; otherwise null.", "description": "SHA-256 digest of the original video bytes; null if unavailable.", "field_path": "outputs[].sha256", "json_schema": { "type": [ "string", "null" ] }, "name": "sha256", "nullable": true, "type": "string | null" }, { "condition": "Returned when the recorded file size is positive.", "description": "Size of the original video file in bytes; null if unavailable.", "field_path": "outputs[].size_bytes", "json_schema": { "type": [ "integer", "null" ] }, "name": "size_bytes", "nullable": true, "type": "integer | null" }, { "condition": "Returned when the measured duration is positive.", "description": "Measured video duration in milliseconds; null if unavailable.", "field_path": "outputs[].duration_ms", "json_schema": { "type": [ "integer", "null" ] }, "name": "duration_ms", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video width in pixels; null if unavailable.", "field_path": "outputs[].width", "json_schema": { "type": [ "integer", "null" ] }, "name": "width", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video height in pixels; null if unavailable.", "field_path": "outputs[].height", "json_schema": { "type": [ "integer", "null" ] }, "name": "height", "nullable": true, "type": "integer | null" }, { "condition": "Returned together with positive recorded width and height.", "description": "Video codec identifier; null if not recorded.", "field_path": "outputs[].video_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "video_codec", "nullable": true, "type": "string | null" }, { "condition": "Returned when width, height and the video codec are recorded; false is a known result.", "description": "Whether the video contains an audio track; null if not measured.", "field_path": "outputs[].has_audio", "json_schema": { "type": [ "boolean", "null" ] }, "name": "has_audio", "nullable": true, "type": "boolean | null" }, { "condition": "Returned when video metadata is recorded and the audio codec identifier is nonempty.", "description": "Audio codec identifier; null when no identifier is recorded.", "field_path": "outputs[].audio_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "audio_codec", "nullable": true, "type": "string | null" } ], "format": "original MP4 bytes; no normalization/transcode", "max_aggregate_seconds": 2400, "max_bytes_per_output": 67108864, "max_seconds_per_output": 600, "result": "signed owned content URLs", "unmeasured_fields_nullable": true }, "parameters": [ { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "name": "model", "required": true, "schema": { "const": "bytedance/seedance-2.5" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "minLength": 1, "name": "prompt", "required": true, "schema": { "minLength": 1, "type": "string", "x-source-max-utf8-bytes": 10000, "x-source-non-whitespace": true }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "enum_known": true, "maximum": 600, "minimum": 1, "name": "duration", "required": true, "schema": { "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "maximum": 600, "minimum": 1, "type": "integer" }, "type": "integer" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "480p", "720p" ], "enum_known": true, "name": "resolution", "required": false, "schema": { "enum": [ "480p", "720p" ] }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ], "enum_known": true, "name": "aspect_ratio", "required": false, "schema": { "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ] }, "type": "string" }, { "availability": "source_interface", "conditions": "Omitting generate_audio selects the audio-enabled price; false selects the no-audio price. Check has_audio in the result to see whether an audio track was returned.", "default": null, "default_known": false, "enum": [ false, true ], "enum_known": true, "name": "generate_audio", "required": false, "schema": { "enum": [ false, true ], "x-omitted-default": "published audio capability when true/false; unknown if null; output audio must be measured" }, "type": "boolean" }, { "availability": "source_interface", "conditions": "These keys apply to each frame object. Omit frame_images for a text-only request.", "content": "Array of frame objects. Each has type=image_url, image_url containing url and frame_type=first_frame or last_frame. Each role appears once at most. Use public HTTPS URLs.", "default": null, "default_known": false, "enum": null, "enum_known": false, "exact_keys": [ "type", "image_url", "frame_type" ], "maxItems": 2, "max_items": 2, "minItems": 1, "min_items": 1, "name": "frame_images", "required": false, "schema": { "items": { "additionalProperties": false, "properties": { "frame_type": { "enum": [ "first_frame", "last_frame" ] }, "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url", "frame_type" ], "type": "object" }, "maxItems": 2, "minItems": 1, "type": "array", "x-source-unique-role": "frame_type" }, "type": "array" }, { "availability": "source_interface", "conditions": "Omit frame_images to use reference mode. Use public HTTPS URLs.", "content": "Array of image or audio reference objects. Set type to image_url or audio_url, and supply the matching URL object containing url. Video references remain unpriceable.", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "input_references", "required": false, "schema": { "items": { "oneOf": [ { "additionalProperties": false, "properties": { "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url" ], "type": "object" }, { "additionalProperties": false, "properties": { "audio_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "audio_url" } }, "required": [ "type", "audio_url" ], "type": "object" } ] }, "type": "array" }, "type": "array" }, { "availability": "source_interface", "conditions": "For listed sizes other than 1280x720, omit aspect_ratio. You can combine 1280x720 with 16:9. If you provide resolution, it must match the selected size’s 480p or 720p tier.", "default": null, "default_known": false, "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "enum_known": true, "name": "size", "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "required": false, "schema": { "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "type": "string" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maximum": 9223372036854775807, "minimum": -9223372036854775808, "name": "seed", "required": false, "schema": { "maximum": 9223372036854775807, "minimum": -9223372036854775808, "type": "integer" }, "type": "integer" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "callback_url", "pattern": "^https://", "required": false, "schema": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maxLength": 256, "name": "session_id", "required": false, "schema": { "maxLength": 256, "type": "string" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "trace", "required": false, "schema": { "additionalProperties": true, "properties": { "generation_name": { "type": "string" }, "parent_span_id": { "type": "string" }, "span_name": { "type": "string" }, "trace_id": { "type": "string" }, "trace_name": { "type": "string" } }, "type": "object" }, "type": "object" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maxLength": 256, "name": "user", "required": false, "schema": { "maxLength": 256, "type": "string" }, "type": "string" } ], "request_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "aspect_ratio": { "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ] }, "callback_url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" }, "creativity": false, "duration": { "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "maximum": 600, "minimum": 1, "type": "integer" }, "frame_images": { "items": { "additionalProperties": false, "properties": { "frame_type": { "enum": [ "first_frame", "last_frame" ] }, "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url", "frame_type" ], "type": "object" }, "maxItems": 2, "minItems": 1, "type": "array", "x-source-unique-role": "frame_type" }, "generate_audio": { "enum": [ false, true ], "x-omitted-default": "published audio capability when true/false; unknown if null; output audio must be measured" }, "input_references": { "items": { "oneOf": [ { "additionalProperties": false, "properties": { "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url" ], "type": "object" }, { "additionalProperties": false, "properties": { "audio_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "audio_url" } }, "required": [ "type", "audio_url" ], "type": "object" } ] }, "type": "array" }, "model": { "const": "bytedance/seedance-2.5" }, "previous_job_id": false, "prompt": { "minLength": 1, "type": "string", "x-source-max-utf8-bytes": 10000, "x-source-non-whitespace": true }, "provider": false, "resolution": { "enum": [ "480p", "720p" ] }, "seed": { "maximum": 9223372036854775807, "minimum": -9223372036854775808, "type": "integer" }, "session_id": { "maxLength": 256, "type": "string" }, "size": { "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "type": "string" }, "trace": { "additionalProperties": true, "properties": { "generation_name": { "type": "string" }, "parent_span_id": { "type": "string" }, "span_name": { "type": "string" }, "trace_id": { "type": "string" }, "trace_name": { "type": "string" } }, "type": "object" }, "upscale_factor": false, "user": { "maxLength": 256, "type": "string" } }, "required": [ "model", "prompt", "duration" ], "title": "Video generation request", "type": "object", "x-source-global-rules": [ "No null values or duplicate keys at any JSON object level", "No duration/resolution/aspect default is inserted", "Prompt required for all21 despite broader official image-only schema", "A request must also pass model membership, exact price card, SKU selection and frozen quote construction", "Non-string known trace fields reject; other trace keys retain arbitrary JSON", "No n/output-count/client price fields accepted", "Provider passthrough disabled for all21; feed allowlist names do not supply provider slug/value contract" ], "x-source-material-combinations": [ "Exact model/card, positive published duration, model resolution/aspect membership and valid frozen quote are all required; independent enum arrays are not proven provider Cartesian combinations.", "Use exact published size or compatible resolution/aspect. Omitted options stay omitted; no guessed geometry.", "first_frame/last_frame roles each occur at most once; frame_images wins mode precedence over input_references.", "provider options are unavailable for this model despite any published passthrough-name allowlist.", "Request geometry is required for the pre-generation estimate and reserve. Returned geometry and track time describe the generated output; final charge follows the actual billed configuration.", "Video references with *_with_video_input quantity are rejected; image/audio references only where model reference types admit them.", "Only twelve named size tiers are accepted; when size and aspect coexist only1280x720+16:9 is established. Size-only forms preserve omission.", "Documentary edit/continuation modes are not exposed as executable edits; previous_job_id is rejected." ] }, "unsupported": [ "provider", "previous_job_id", "upscale_factor", "creativity" ] }, "input": { "additional_properties": false, "content_type": "application/json", "material_types": [ "text", "image", "audio" ], "optional_controls": [ "resolution", "aspect_ratio", "generate_audio", "frame_images", "input_references", "size", "seed", "callback_url", "session_id", "trace", "user" ], "required": [ "model", "prompt", "duration" ] }, "lifecycle": { "cancel_endpoint": null, "content": [ { "http": "GET", "path": "/v1/videos/{public_id}/content", "query": { "index": "actual output index" } } ], "create": { "http": "POST", "path": "/v1/videos" }, "mode": "submit_once_poll_original", "public_id": "video_; owner user/key/group scope", "status": [ { "http": "GET", "path": "/v1/videos/{public_id}" } ], "submit_status": 202, "terminal_failure_public": "200 failed + charge_pending_check=true; inspect original operation", "terminal_provider_states": [ "failed", "cancelled", "expired" ], "unknown": "503 result_pending_check + originalid + X-Should-Retry:false; never replay original" }, "method": { "http": "POST", "path": "/v1/videos" }, "method_aliases": [], "operation_modes": [ "text_to_video", "image_to_video_frame_images", "reference_to_video" ], "output": { "content_range_supported": true, "every_actual_output": true, "family": "video", "fields": [ { "condition": "Always present for each completed output.", "description": "Zero-based position of this video in the outputs list.", "field_path": "outputs[].index", "json_schema": { "type": "integer" }, "name": "index", "nullable": false, "type": "integer" }, { "condition": "Present after the owned result is available and a signed URL is created.", "description": "Signed HTTPS download URL for this completed video.", "field_path": "outputs[].content_url", "json_schema": { "type": "string" }, "name": "content_url", "nullable": false, "type": "string" }, { "condition": "A nonempty recorded digest is returned; otherwise null.", "description": "SHA-256 digest of the original video bytes; null if unavailable.", "field_path": "outputs[].sha256", "json_schema": { "type": [ "string", "null" ] }, "name": "sha256", "nullable": true, "type": "string | null" }, { "condition": "Returned when the recorded file size is positive.", "description": "Size of the original video file in bytes; null if unavailable.", "field_path": "outputs[].size_bytes", "json_schema": { "type": [ "integer", "null" ] }, "name": "size_bytes", "nullable": true, "type": "integer | null" }, { "condition": "Returned when the measured duration is positive.", "description": "Measured video duration in milliseconds; null if unavailable.", "field_path": "outputs[].duration_ms", "json_schema": { "type": [ "integer", "null" ] }, "name": "duration_ms", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video width in pixels; null if unavailable.", "field_path": "outputs[].width", "json_schema": { "type": [ "integer", "null" ] }, "name": "width", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video height in pixels; null if unavailable.", "field_path": "outputs[].height", "json_schema": { "type": [ "integer", "null" ] }, "name": "height", "nullable": true, "type": "integer | null" }, { "condition": "Returned together with positive recorded width and height.", "description": "Video codec identifier; null if not recorded.", "field_path": "outputs[].video_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "video_codec", "nullable": true, "type": "string | null" }, { "condition": "Returned when width, height and the video codec are recorded; false is a known result.", "description": "Whether the video contains an audio track; null if not measured.", "field_path": "outputs[].has_audio", "json_schema": { "type": [ "boolean", "null" ] }, "name": "has_audio", "nullable": true, "type": "boolean | null" }, { "condition": "Returned when video metadata is recorded and the audio codec identifier is nonempty.", "description": "Audio codec identifier; null when no identifier is recorded.", "field_path": "outputs[].audio_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "audio_codec", "nullable": true, "type": "string | null" } ], "format": "original MP4 bytes; no normalization/transcode", "max_aggregate_seconds": 2400, "max_bytes_per_output": 67108864, "max_seconds_per_output": 600, "result": "signed owned content URLs", "unmeasured_fields_nullable": true } }, "ctx": null, "declared_pricing_profiles": [ { "dimensions": { "regime": "base" }, "label": "Base token rates", "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "No additional condition is declared in this pricing key.", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "input: with_video_input", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "audio: without_audio", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "This estimate is not an additional charge or a fixed rate for the completed generation.", "dimensions": { "forecast_quantity": "one generation estimate" }, "label": "Estimated generation cost", "units": [ { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } ], "examples": [ { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\npython3 - <<'PY_REQUEST'\nfrom pathlib import Path\nPath('request.json').write_text('{\"model\":\"bytedance/seedance-2.5\",\"prompt\":\"A serene mountain landscape at sunset\",\"duration\":4,\"resolution\":\"480p\",\"size\":\"854x480\",\"generate_audio\":false}', encoding='utf-8')\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/videos \\\n -H \"Authorization: Bearer $AILOOT_API_KEY\" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('result.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n", "label": "curl · create video", "language": "bash" }, { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\npython3 - <<'PY_STATUS_URL'\nimport json\nfrom pathlib import Path\nfrom urllib.parse import quote\nr=json.loads(Path('result.json').read_text())\nif not isinstance(r.get('id'),str) or not r['id']:raise SystemExit('Keep the original response and headers for reconciliation; no returned ID')\nPath('status-url.txt').write_text('https://api.ailoot.ai/v1/videos/'+quote(r['id'],safe=''))\nPY_STATUS_URL\ncurl --fail-with-body --silent --show-error \"$(cat status-url.txt)\" \\\n -H \"Authorization: Bearer $AILOOT_API_KEY\" -D status-headers.txt -o status.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('status.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n", "label": "GET original status", "language": "bash" }, { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\nexport AILOOT_API_KEY\npython3 - <<'PY_ASSETS'\nimport json,os,subprocess\nfrom pathlib import Path\nfrom urllib.parse import urljoin,urlsplit\nr=json.loads(Path('status.json').read_text())\nif r.get('status')!='completed':raise SystemExit('Keep the original ID and read its status; never recreate an unknown job')\nif not isinstance(r.get('data'),list) or not r['data']:raise SystemExit('Keep the complete original status; no completed outputs supplied')\nurls=[]\nfor i,u in enumerate(r.get('data',[])):\n if not isinstance(u,str):raise SystemExit('Keep the original response; unexpected asset shape')\n urls.append((str(i),u))\nfor label,path in urls:\n u=urljoin('https://api.ailoot.ai',path);z=urlsplit(u)\n if z.scheme!='https' or z.netloc!='api.ailoot.ai' or z.username or z.password:raise SystemExit('Use the actual returned Ailoot owned content URL')\n target=Path('owned-'+label+'.bin')\n subprocess.run(['curl','--fail-with-body','--silent','--show-error',u,'-H','Authorization: Bearer '+os.environ['AILOOT_API_KEY'],'-D',str(target)+'.headers','-o',str(target)],check=True)\nprint('All returned owned URLs saved; complete metadata, timing and usage remain in the JSON.')\nPY_ASSETS\n", "label": "Save every completed owned output", "language": "bash" } ], "family": "openai", "fast_multiplier": null, "flex_multiplier": null, "fmt": "videos", "hints": [], "http": "POST", "in": null, "input": [ "text", "image", "audio" ], "label": "Видео", "max_out": null, "max_reasoning_effort_multiplier": null, "method_aliases": [], "out": null, "output": [ "video" ], "path": "/v1/videos", "price_conditions": [ { "label": "Fast mode", "value": "Not specified", "when": "When fast mode is selected" }, { "label": "Flex mode", "value": "Not specified", "when": "When flex mode is selected" }, { "label": "Maximum reasoning effort", "value": "Not specified", "when": "When maximum reasoning effort uses the default adjustment" } ], "pricing": { "billing_mode": "original_invoice_usd", "image_input_price": null, "image_output_price": null }, "pricing_profiles": [ { "dimensions": { "regime": "base" }, "label": "Base token rates", "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "No additional condition is declared in this pricing key.", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "input: with_video_input", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "audio: without_audio", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "This estimate is not an additional charge or a fixed rate for the completed generation.", "dimensions": { "forecast_quantity": "one generation estimate" }, "label": "Estimated generation cost", "units": [ { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } ], "request_model_id": "bytedance/seedance-2.5", "route_label": "Ultra", "status_reads": [ "GET /v1/videos/{public_id}", "GET /v1/videos/{public_id}/content" ], "tiers": [], "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" }, { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" }, { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" }, { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" }, { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } } ], "model_id": "bytedance/seedance-2.5", "nativeProvenance": { "input_facts_canonical_sha256": "e3ff52572a7012781bcbab90d057a480a86002f9c503c8114b4b518c7b8e5cfe", "input_html_sha256": "c6b503ed347b7c1390a4efcaadd1712ece0669333f0ba3440c3ed10c46f45dac", "private_audit_sha256": "cd6d9f5bc65075d299edebe7fc08a8d08215ffd8d58759318c61c7efa06a2a3e", "role": "historical-normalized-input-audit-hashes", "schema": "ailoot-native-model-provenance-v2" }, "page": { "canonical": "https://ailoot.ai/models/en/bytedance-seedance-2-5/", "description": "Seedance 2.5 creates audio and video together for longer scenes, rich image/video/audio references and targeted edits. ByteDance Seed documents up to 30-second generation, clay-render guidance, controlled camera work and continuation of existing footage.", "locale": "en", "md_url": "https://ailoot.ai/models/en/bytedance-seedance-2-5/index.md", "title": "ByteDance: Seedance 2.5 — Ailoot", "url": "https://ailoot.ai/models/en/bytedance-seedance-2-5/" }, "rawModel": { "about": "Seedance 2.5 is ByteDance Seed’s audio-video joint-generation model. It builds on Seedance 2.0 with longer storytelling, richer multimodal references and more precise editing. A text brief can define a scene, while images, video and audio communicate appearance, movement, camera language and sound. The result is audiovisual footage for a film concept, product story, music video, previsualisation or short narrative.\n\nA complete scene in one generation\nThe producer extends the single-pass generation ceiling from the earlier 15 seconds to up to 30 seconds. That gives a brief room for a setup, development and conclusion, with several connected shots or a continuous camera move. Its stage-performance example follows a singer from a dressing room through a corridor and onto the stage, rather than showing only the arrival. Describe the sequence of actions and the camera’s route in their intended order. For a product story, plan the reveal, demonstration and closing composition so that each beat contributes something visible.\n\nContinuing existing footage\nSeedance 2.5 can extend a clip forwards or backwards, using the established characters, environment, motion and camera direction as continuity cues. A forward continuation describes what happens after the final moment; a backward continuation describes the lead-in to the opening. Supply the existing footage and explain the new action, setting change or camera move. Review the join as well as the new segment, including subject appearance, sound and the direction of movement. The manufacturer’s launch discusses repeated extension, while its model page describes two extension steps; the usable extension budget belongs to the specific workflow rather than a universal unlimited-video promise.\n\nImage, video and audio references\nThe announced reference budget is up to 50 assets in one generation: 30 images, 10 video clips and 10 audio clips. Images can establish characters, products, locations, props or style. Videos can communicate performance, pacing and camera movement. Audio can supply dialogue, music, atmosphere or rhythm. Assign each asset a clear role: one reference for the subject, another for the environment, a video for the camera move and an audio clip for timing. These materials guide interpretation; they do not guarantee that every detail is reproduced exactly.\n\nClay-render guidance and performance blocking\nA textureless 3D scene can define spatial layout, poses, movement paths and camera angles before the final appearance is rendered. The producer demonstrates using this clay-render structure together with a separate image for character design, materials, colour and atmosphere. This is useful for an animation or assembly visual whose staging matters more than a loose style reference. State which source controls the blocking and which controls the look. The model also uses spatial cues to guide light direction, colour temperature, intensity and shadow placement.\n\nTimestamp edits and camera control\nSeedance 2.5 supports targeting a time span during generation and revising characters, actions or story elements in an existing clip. Timestamp-based editing can target both audio and visual content; identify the time interval and the element to revise. The manufacturer demonstrates green-screen background replacement, reference-based edits and changing the camera movement while retaining the scene’s action and style. An edit brief should identify the source clip, the interval, the element to change and the continuity to preserve. For example, describe a lighting or background change over one segment instead of asking to redesign the entire film. After the edit, inspect the moments before and after the interval as well as the revised content.\n\nAudiovisual output and multilingual creation\nThe producer’s product specification describes 4–30-second generation at 480p, 720p or 1080p, 24 FPS, with MP4 or MOV output. Its official introduction describes native support for more than 10 languages and dialogue-led creation. These are manufacturer capabilities and format choices; they do not define an Ailoot file-input, duration or output-format contract. For dialogue-led work, specify the intended speech and its relationship to the action, then have a fluent speaker review the wording and pronunciation before using a localised version.\n\nApplications and substantive limits\nThe model is useful for campaign concepts, product showcases, character-led stories and realistic previews from reference footage or simple 3D staging. The manufacturer also demonstrates educational explanations and manufacturing or assembly visuals. Generated instructional or simulated footage still needs review against the real process being illustrated. The release explicitly identifies complex-motion physics and stable interactions among multiple subjects as areas for further improvement. Check contact between hands and objects, group interactions, movement paths, character consistency and sound-to-image timing across the entire clip. A strong opening frame does not establish that the complete sequence follows the brief.", "alias_of": null, "aliases": [], "author": "ByteDance", "available": null, "canonical_model": "bytedance/seedance-2.5", "capabilities": { "context_length": 0, "manufacturer_input": [ "text", "image", "video", "audio" ], "manufacturer_output": [ "video" ] }, "card_routes": [ { "label": "Ultra", "rates": [ { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ], "summary": "Full configuration pricing in details." } ], "ctx": null, "declared_tariff_references": [ { "client_selectable": false, "key": "7b02ca86bc11f14fa74beb95", "label": "Video configuration price references", "profiles": [ { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "No additional condition is declared in this pricing key." }, "label": "Video-token price", "units": [ { "amount": "0.0214", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "key": "video_token", "label": "Video-token price", "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "rate_role": "typed_video_token_primary_reference", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "audio: without_audio" }, "label": "Video-token price", "units": [ { "amount": "0.0214", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "key": "video_token", "label": "Video-token price", "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "rate_role": "typed_video_token_primary_reference", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "input: with_video_input" }, "label": "Video-token price", "units": [ { "amount": "0.0128", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "key": "video_token", "label": "Video-token price", "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "rate_role": "typed_video_token_primary_reference", "side": "reference", "unit": "video_token" } ] } ] } ], "entity_type": "model", "formats": [ "videos" ], "id": "bytedance/seedance-2.5", "input": [ "text", "image", "audio" ], "kind": "video", "max_out": null, "methods": [ { "available": null, "billing_basis": { "basis": "original_invoice_usd", "description": "The displayed rates estimate the cost before generation. The final charge is calculated from the cost recorded for the original generation. Measured output duration and forecast quantities are not the final billable quantity.", "forecast_quantity_is_estimate": true, "physical_output_is_billable_quantity": false, "version": "original_invoice_usd_v1" }, "cache_read": null, "cache_write": null, "cache_write_1h": null, "contract": { "data": { "all_results": "Keep every actual owned output and its returned measured metadata.", "defaults": { "aspect_ratio": null, "duration": null, "generate_audio": "endpoint capability flag when published; omitted unknown stays unknown; never guarantees audio track", "resolution": null, "seed": null, "size": null, "wire_omissions_preserved": true }, "errors": [ { "condition": "Video access is unavailable, or this video ID was not found.", "http_status": 404, "public_identifier_field": "error.type", "recovery": "Check video access. For an existing video, use its original public ID and the same API key.", "type": "not_found_error" }, { "condition": "The API key does not match the authenticated account.", "http_status": 401, "public_identifier_field": "error.type", "recovery": "Check your API key and account access before submitting.", "type": "authentication_error" }, { "condition": "The request could not be read, or the download index is invalid.", "http_status": 400, "public_identifier_field": "error.type", "recovery": "Correct the request body. For a download, choose an output index returned by the original task.", "type": "invalid_request_error" }, { "condition": "The selected video configuration cannot be priced.", "http_status": 422, "public_identifier_field": "error.type", "recovery": "Choose a supported video configuration and complete its required options before submitting a corrected request.", "type": "price_unavailable" }, { "condition": "A video input or original continuation task is invalid.", "http_status": 422, "public_identifier_field": "error.type", "recovery": "Use valid HTTPS inputs. For continuation, use your completed original public video ID with the same API key.", "type": "invalid_request_error" }, { "condition": "The available balance or limits do not allow a reservation.", "http_status": 402, "public_identifier_field": "error.type", "recovery": "Check your available balance and limits before sending a new request.", "type": "billing_error" }, { "condition": "Video verification, storage or service access is temporarily unavailable.", "http_status": 503, "public_identifier_field": "error.type", "recovery": "Wait for service availability. If you already have a video ID, check that original task instead of creating another generation.", "type": "server_error" }, { "code": "result_pending_check", "condition": "The original video result and charge need checking.", "http_status": 503, "public_identifier_field": "error.code", "recovery": "Keep the returned video ID and check that task. Do not send a replacement generation request while it is being checked.", "type": "server_error" }, { "code": "owned_result_unavailable", "condition": "The existing video download is temporarily unavailable.", "http_status": 503, "public_identifier_field": "error.code", "recovery": "Check the same video task later and download its existing output. A new generation creates a separate operation.", "type": "server_error" }, { "condition": "The video content has not been published.", "http_status": 409, "public_identifier_field": "error.type", "recovery": "Check the original task status. Download after it reports completed; if it reports failed, follow its charge-check notice.", "type": "video_not_ready" } ], "hints": [ "No null values or duplicate keys at any JSON object level", "No duration/resolution/aspect default is inserted", "Prompt required for all21 despite broader official image-only schema", "A request must also pass model membership, exact price card, SKU selection and frozen quote construction", "Non-string known trace fields reject; other trace keys retain arbitrary JSON", "No n/output-count/client price fields accepted", "Provider passthrough disabled for all21; feed allowlist names do not supply provider slug/value contract" ], "ignored_fields": [], "lifecycle": { "cancel_endpoint": null, "content": [ { "http": "GET", "path": "/v1/videos/{public_id}/content", "query": { "index": "actual output index" } } ], "create": { "http": "POST", "path": "/v1/videos" }, "mode": "submit_once_poll_original", "public_id": "video_; owner user/key/group scope", "status": [ { "http": "GET", "path": "/v1/videos/{public_id}" } ], "submit_status": 202, "terminal_failure_public": "200 failed + charge_pending_check=true; inspect original operation", "terminal_provider_states": [ "failed", "cancelled", "expired" ], "unknown": "503 result_pending_check + originalid + X-Should-Retry:false; never replay original" }, "material_combinations": [ { "mode": "text_to_video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "Provide a text prompt and a supported whole-second duration. Use an exact listed size, or a resolution and aspect ratio that resolve to listed dimensions.", "required": [ "model", "prompt", "duration" ], "required_material": "A written prompt." }, { "exact_keys": [ "type", "image_url", "frame_type" ], "mode": "image_to_video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "frame_images is an array of objects with type=image_url, image_url containing url, and frame_type. Use a public HTTPS image URL; first_frame and last_frame may each appear once. Use a listed output size or compatible dimensions. Do not add video references.", "required": [ "model", "prompt", "duration", "frame_images" ], "required_material": "A written prompt and a frame image." }, { "mode": "Reference to video", "model": { "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "type": "string" }, "prompt": { "max_utf8_bytes": 10000, "non_whitespace": true, "type": "string" }, "representation": "input_references is an array. Each object has type=image_url or type=audio_url and a matching URL object containing url. Use public HTTPS links. Omit frame_images to select reference mode. Video references cannot be priced.", "required": [ "model", "prompt", "duration", "input_references" ], "required_material": "A written prompt and image or audio references." } ], "operation_modes": [ "text_to_video", "image_to_video_frame_images", "reference_to_video" ], "outputs": { "content_range_supported": true, "every_actual_output": true, "family": "video", "fields": [ { "condition": "Always present for each completed output.", "description": "Zero-based position of this video in the outputs list.", "field_path": "outputs[].index", "json_schema": { "type": "integer" }, "name": "index", "nullable": false, "type": "integer" }, { "condition": "Present after the owned result is available and a signed URL is created.", "description": "Signed HTTPS download URL for this completed video.", "field_path": "outputs[].content_url", "json_schema": { "type": "string" }, "name": "content_url", "nullable": false, "type": "string" }, { "condition": "A nonempty recorded digest is returned; otherwise null.", "description": "SHA-256 digest of the original video bytes; null if unavailable.", "field_path": "outputs[].sha256", "json_schema": { "type": [ "string", "null" ] }, "name": "sha256", "nullable": true, "type": "string | null" }, { "condition": "Returned when the recorded file size is positive.", "description": "Size of the original video file in bytes; null if unavailable.", "field_path": "outputs[].size_bytes", "json_schema": { "type": [ "integer", "null" ] }, "name": "size_bytes", "nullable": true, "type": "integer | null" }, { "condition": "Returned when the measured duration is positive.", "description": "Measured video duration in milliseconds; null if unavailable.", "field_path": "outputs[].duration_ms", "json_schema": { "type": [ "integer", "null" ] }, "name": "duration_ms", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video width in pixels; null if unavailable.", "field_path": "outputs[].width", "json_schema": { "type": [ "integer", "null" ] }, "name": "width", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video height in pixels; null if unavailable.", "field_path": "outputs[].height", "json_schema": { "type": [ "integer", "null" ] }, "name": "height", "nullable": true, "type": "integer | null" }, { "condition": "Returned together with positive recorded width and height.", "description": "Video codec identifier; null if not recorded.", "field_path": "outputs[].video_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "video_codec", "nullable": true, "type": "string | null" }, { "condition": "Returned when width, height and the video codec are recorded; false is a known result.", "description": "Whether the video contains an audio track; null if not measured.", "field_path": "outputs[].has_audio", "json_schema": { "type": [ "boolean", "null" ] }, "name": "has_audio", "nullable": true, "type": "boolean | null" }, { "condition": "Returned when video metadata is recorded and the audio codec identifier is nonempty.", "description": "Audio codec identifier; null when no identifier is recorded.", "field_path": "outputs[].audio_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "audio_codec", "nullable": true, "type": "string | null" } ], "format": "original MP4 bytes; no normalization/transcode", "max_aggregate_seconds": 2400, "max_bytes_per_output": 67108864, "max_seconds_per_output": 600, "result": "signed owned content URLs", "unmeasured_fields_nullable": true }, "parameters": [ { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "bytedance/seedance-2.5" ], "enum_known": true, "name": "model", "required": true, "schema": { "const": "bytedance/seedance-2.5" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "minLength": 1, "name": "prompt", "required": true, "schema": { "minLength": 1, "type": "string", "x-source-max-utf8-bytes": 10000, "x-source-non-whitespace": true }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "enum_known": true, "maximum": 600, "minimum": 1, "name": "duration", "required": true, "schema": { "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "maximum": 600, "minimum": 1, "type": "integer" }, "type": "integer" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "480p", "720p" ], "enum_known": true, "name": "resolution", "required": false, "schema": { "enum": [ "480p", "720p" ] }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ], "enum_known": true, "name": "aspect_ratio", "required": false, "schema": { "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ] }, "type": "string" }, { "availability": "source_interface", "conditions": "Omitting generate_audio selects the audio-enabled price; false selects the no-audio price. Check has_audio in the result to see whether an audio track was returned.", "default": null, "default_known": false, "enum": [ false, true ], "enum_known": true, "name": "generate_audio", "required": false, "schema": { "enum": [ false, true ], "x-omitted-default": "published audio capability when true/false; unknown if null; output audio must be measured" }, "type": "boolean" }, { "availability": "source_interface", "conditions": "These keys apply to each frame object. Omit frame_images for a text-only request.", "content": "Array of frame objects. Each has type=image_url, image_url containing url and frame_type=first_frame or last_frame. Each role appears once at most. Use public HTTPS URLs.", "default": null, "default_known": false, "enum": null, "enum_known": false, "exact_keys": [ "type", "image_url", "frame_type" ], "maxItems": 2, "max_items": 2, "minItems": 1, "min_items": 1, "name": "frame_images", "required": false, "schema": { "items": { "additionalProperties": false, "properties": { "frame_type": { "enum": [ "first_frame", "last_frame" ] }, "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url", "frame_type" ], "type": "object" }, "maxItems": 2, "minItems": 1, "type": "array", "x-source-unique-role": "frame_type" }, "type": "array" }, { "availability": "source_interface", "conditions": "Omit frame_images to use reference mode. Use public HTTPS URLs.", "content": "Array of image or audio reference objects. Set type to image_url or audio_url, and supply the matching URL object containing url. Video references remain unpriceable.", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "input_references", "required": false, "schema": { "items": { "oneOf": [ { "additionalProperties": false, "properties": { "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url" ], "type": "object" }, { "additionalProperties": false, "properties": { "audio_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "audio_url" } }, "required": [ "type", "audio_url" ], "type": "object" } ] }, "type": "array" }, "type": "array" }, { "availability": "source_interface", "conditions": "For listed sizes other than 1280x720, omit aspect_ratio. You can combine 1280x720 with 16:9. If you provide resolution, it must match the selected size’s 480p or 720p tier.", "default": null, "default_known": false, "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "enum_known": true, "name": "size", "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "required": false, "schema": { "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "type": "string" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maximum": 9223372036854775807, "minimum": -9223372036854775808, "name": "seed", "required": false, "schema": { "maximum": 9223372036854775807, "minimum": -9223372036854775808, "type": "integer" }, "type": "integer" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "callback_url", "pattern": "^https://", "required": false, "schema": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maxLength": 256, "name": "session_id", "required": false, "schema": { "maxLength": 256, "type": "string" }, "type": "string" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "name": "trace", "required": false, "schema": { "additionalProperties": true, "properties": { "generation_name": { "type": "string" }, "parent_span_id": { "type": "string" }, "span_name": { "type": "string" }, "trace_id": { "type": "string" }, "trace_name": { "type": "string" } }, "type": "object" }, "type": "object" }, { "availability": "source_interface", "default": null, "default_known": false, "enum": null, "enum_known": false, "maxLength": 256, "name": "user", "required": false, "schema": { "maxLength": 256, "type": "string" }, "type": "string" } ], "request_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "aspect_ratio": { "enum": [ "16:9", "4:3", "1:1", "3:4", "9:16", "21:9" ] }, "callback_url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" }, "creativity": false, "duration": { "enum": [ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 ], "maximum": 600, "minimum": 1, "type": "integer" }, "frame_images": { "items": { "additionalProperties": false, "properties": { "frame_type": { "enum": [ "first_frame", "last_frame" ] }, "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url", "frame_type" ], "type": "object" }, "maxItems": 2, "minItems": 1, "type": "array", "x-source-unique-role": "frame_type" }, "generate_audio": { "enum": [ false, true ], "x-omitted-default": "published audio capability when true/false; unknown if null; output audio must be measured" }, "input_references": { "items": { "oneOf": [ { "additionalProperties": false, "properties": { "image_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "image_url" } }, "required": [ "type", "image_url" ], "type": "object" }, { "additionalProperties": false, "properties": { "audio_url": { "additionalProperties": false, "properties": { "url": { "format": "uri", "pattern": "^https://", "type": "string", "x-source-rule": "public HTTPS; no userinfo, fragment, whitespace, private/reserved hosts; own-media links additionally require owner/signature/status/hash/MIME/bytes" } }, "required": [ "url" ], "type": "object" }, "type": { "const": "audio_url" } }, "required": [ "type", "audio_url" ], "type": "object" } ] }, "type": "array" }, "model": { "const": "bytedance/seedance-2.5" }, "previous_job_id": false, "prompt": { "minLength": 1, "type": "string", "x-source-max-utf8-bytes": 10000, "x-source-non-whitespace": true }, "provider": false, "resolution": { "enum": [ "480p", "720p" ] }, "seed": { "maximum": 9223372036854775807, "minimum": -9223372036854775808, "type": "integer" }, "session_id": { "maxLength": 256, "type": "string" }, "size": { "enum": [ "854x480", "752x560", "640x640", "560x752", "480x854", "992x432", "1280x720", "1112x834", "960x960", "834x1112", "720x1280", "1470x630" ], "pattern": "^[1-9][0-9]*x[1-9][0-9]*$", "type": "string" }, "trace": { "additionalProperties": true, "properties": { "generation_name": { "type": "string" }, "parent_span_id": { "type": "string" }, "span_name": { "type": "string" }, "trace_id": { "type": "string" }, "trace_name": { "type": "string" } }, "type": "object" }, "upscale_factor": false, "user": { "maxLength": 256, "type": "string" } }, "required": [ "model", "prompt", "duration" ], "title": "Video generation request", "type": "object", "x-source-global-rules": [ "No null values or duplicate keys at any JSON object level", "No duration/resolution/aspect default is inserted", "Prompt required for all21 despite broader official image-only schema", "A request must also pass model membership, exact price card, SKU selection and frozen quote construction", "Non-string known trace fields reject; other trace keys retain arbitrary JSON", "No n/output-count/client price fields accepted", "Provider passthrough disabled for all21; feed allowlist names do not supply provider slug/value contract" ], "x-source-material-combinations": [ "Exact model/card, positive published duration, model resolution/aspect membership and valid frozen quote are all required; independent enum arrays are not proven provider Cartesian combinations.", "Use exact published size or compatible resolution/aspect. Omitted options stay omitted; no guessed geometry.", "first_frame/last_frame roles each occur at most once; frame_images wins mode precedence over input_references.", "provider options are unavailable for this model despite any published passthrough-name allowlist.", "Request geometry is required for the pre-generation estimate and reserve. Returned geometry and track time describe the generated output; final charge follows the actual billed configuration.", "Video references with *_with_video_input quantity are rejected; image/audio references only where model reference types admit them.", "Only twelve named size tiers are accepted; when size and aspect coexist only1280x720+16:9 is established. Size-only forms preserve omission.", "Documentary edit/continuation modes are not exposed as executable edits; previous_job_id is rejected." ] }, "unsupported": [ "provider", "previous_job_id", "upscale_factor", "creativity" ] }, "input": { "additional_properties": false, "content_type": "application/json", "material_types": [ "text", "image", "audio" ], "optional_controls": [ "resolution", "aspect_ratio", "generate_audio", "frame_images", "input_references", "size", "seed", "callback_url", "session_id", "trace", "user" ], "required": [ "model", "prompt", "duration" ] }, "lifecycle": { "cancel_endpoint": null, "content": [ { "http": "GET", "path": "/v1/videos/{public_id}/content", "query": { "index": "actual output index" } } ], "create": { "http": "POST", "path": "/v1/videos" }, "mode": "submit_once_poll_original", "public_id": "video_; owner user/key/group scope", "status": [ { "http": "GET", "path": "/v1/videos/{public_id}" } ], "submit_status": 202, "terminal_failure_public": "200 failed + charge_pending_check=true; inspect original operation", "terminal_provider_states": [ "failed", "cancelled", "expired" ], "unknown": "503 result_pending_check + originalid + X-Should-Retry:false; never replay original" }, "method": { "http": "POST", "path": "/v1/videos" }, "method_aliases": [], "operation_modes": [ "text_to_video", "image_to_video_frame_images", "reference_to_video" ], "output": { "content_range_supported": true, "every_actual_output": true, "family": "video", "fields": [ { "condition": "Always present for each completed output.", "description": "Zero-based position of this video in the outputs list.", "field_path": "outputs[].index", "json_schema": { "type": "integer" }, "name": "index", "nullable": false, "type": "integer" }, { "condition": "Present after the owned result is available and a signed URL is created.", "description": "Signed HTTPS download URL for this completed video.", "field_path": "outputs[].content_url", "json_schema": { "type": "string" }, "name": "content_url", "nullable": false, "type": "string" }, { "condition": "A nonempty recorded digest is returned; otherwise null.", "description": "SHA-256 digest of the original video bytes; null if unavailable.", "field_path": "outputs[].sha256", "json_schema": { "type": [ "string", "null" ] }, "name": "sha256", "nullable": true, "type": "string | null" }, { "condition": "Returned when the recorded file size is positive.", "description": "Size of the original video file in bytes; null if unavailable.", "field_path": "outputs[].size_bytes", "json_schema": { "type": [ "integer", "null" ] }, "name": "size_bytes", "nullable": true, "type": "integer | null" }, { "condition": "Returned when the measured duration is positive.", "description": "Measured video duration in milliseconds; null if unavailable.", "field_path": "outputs[].duration_ms", "json_schema": { "type": [ "integer", "null" ] }, "name": "duration_ms", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video width in pixels; null if unavailable.", "field_path": "outputs[].width", "json_schema": { "type": [ "integer", "null" ] }, "name": "width", "nullable": true, "type": "integer | null" }, { "condition": "Width, height and the video codec are returned together when recorded.", "description": "Video height in pixels; null if unavailable.", "field_path": "outputs[].height", "json_schema": { "type": [ "integer", "null" ] }, "name": "height", "nullable": true, "type": "integer | null" }, { "condition": "Returned together with positive recorded width and height.", "description": "Video codec identifier; null if not recorded.", "field_path": "outputs[].video_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "video_codec", "nullable": true, "type": "string | null" }, { "condition": "Returned when width, height and the video codec are recorded; false is a known result.", "description": "Whether the video contains an audio track; null if not measured.", "field_path": "outputs[].has_audio", "json_schema": { "type": [ "boolean", "null" ] }, "name": "has_audio", "nullable": true, "type": "boolean | null" }, { "condition": "Returned when video metadata is recorded and the audio codec identifier is nonempty.", "description": "Audio codec identifier; null when no identifier is recorded.", "field_path": "outputs[].audio_codec", "json_schema": { "type": [ "string", "null" ] }, "name": "audio_codec", "nullable": true, "type": "string | null" } ], "format": "original MP4 bytes; no normalization/transcode", "max_aggregate_seconds": 2400, "max_bytes_per_output": 67108864, "max_seconds_per_output": 600, "result": "signed owned content URLs", "unmeasured_fields_nullable": true } }, "ctx": null, "declared_pricing_profiles": [ { "dimensions": { "regime": "base" }, "label": "Base token rates", "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "No additional condition is declared in this pricing key.", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "input: with_video_input", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "audio: without_audio", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "This estimate is not an additional charge or a fixed rate for the completed generation.", "dimensions": { "forecast_quantity": "one generation estimate" }, "label": "Estimated generation cost", "units": [ { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } ], "examples": [ { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\npython3 - <<'PY_REQUEST'\nfrom pathlib import Path\nPath('request.json').write_text('{\"model\":\"bytedance/seedance-2.5\",\"prompt\":\"A serene mountain landscape at sunset\",\"duration\":4,\"resolution\":\"480p\",\"size\":\"854x480\",\"generate_audio\":false}', encoding='utf-8')\nPY_REQUEST\ncurl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/videos \\\n -H \"Authorization: Bearer $AILOOT_API_KEY\" -H 'Content-Type: application/json' \\\n --data-binary @request.json -D response-headers.txt -o result.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('result.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n", "label": "curl · create video", "language": "bash" }, { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\npython3 - <<'PY_STATUS_URL'\nimport json\nfrom pathlib import Path\nfrom urllib.parse import quote\nr=json.loads(Path('result.json').read_text())\nif not isinstance(r.get('id'),str) or not r['id']:raise SystemExit('Keep the original response and headers for reconciliation; no returned ID')\nPath('status-url.txt').write_text('https://api.ailoot.ai/v1/videos/'+quote(r['id'],safe=''))\nPY_STATUS_URL\ncurl --fail-with-body --silent --show-error \"$(cat status-url.txt)\" \\\n -H \"Authorization: Bearer $AILOOT_API_KEY\" -D status-headers.txt -o status.json\npython3 - <<'PY_RESULT'\nimport json\nfrom pathlib import Path\nr=json.loads(Path('status.json').read_text())\nprint(json.dumps(r,ensure_ascii=False,indent=2))\nprint('Keep the complete JSON and response headers; do not resubmit an unknown creation.')\nPY_RESULT\n", "label": "GET original status", "language": "bash" }, { "code": "set -eu\n: \"${AILOOT_API_KEY:?Set your Ailoot API key}\"\nexport AILOOT_API_KEY\npython3 - <<'PY_ASSETS'\nimport json,os,subprocess\nfrom pathlib import Path\nfrom urllib.parse import urljoin,urlsplit\nr=json.loads(Path('status.json').read_text())\nif r.get('status')!='completed':raise SystemExit('Keep the original ID and read its status; never recreate an unknown job')\nif not isinstance(r.get('data'),list) or not r['data']:raise SystemExit('Keep the complete original status; no completed outputs supplied')\nurls=[]\nfor i,u in enumerate(r.get('data',[])):\n if not isinstance(u,str):raise SystemExit('Keep the original response; unexpected asset shape')\n urls.append((str(i),u))\nfor label,path in urls:\n u=urljoin('https://api.ailoot.ai',path);z=urlsplit(u)\n if z.scheme!='https' or z.netloc!='api.ailoot.ai' or z.username or z.password:raise SystemExit('Use the actual returned Ailoot owned content URL')\n target=Path('owned-'+label+'.bin')\n subprocess.run(['curl','--fail-with-body','--silent','--show-error',u,'-H','Authorization: Bearer '+os.environ['AILOOT_API_KEY'],'-D',str(target)+'.headers','-o',str(target)],check=True)\nprint('All returned owned URLs saved; complete metadata, timing and usage remain in the JSON.')\nPY_ASSETS\n", "label": "Save every completed owned output", "language": "bash" } ], "family": "openai", "fast_multiplier": null, "flex_multiplier": null, "fmt": "videos", "hints": [], "http": "POST", "in": null, "input": [ "text", "image", "audio" ], "label": "Видео", "max_out": null, "max_reasoning_effort_multiplier": null, "method_aliases": [], "out": null, "output": [ "video" ], "path": "/v1/videos", "price_conditions": [ { "label": "Fast mode", "value": "Not specified", "when": "When fast mode is selected" }, { "label": "Flex mode", "value": "Not specified", "when": "When flex mode is selected" }, { "label": "Maximum reasoning effort", "value": "Not specified", "when": "When maximum reasoning effort uses the default adjustment" } ], "pricing": { "billing_mode": "original_invoice_usd", "image_input_price": null, "image_output_price": null }, "pricing_profiles": [ { "dimensions": { "regime": "base" }, "label": "Base token rates", "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "No additional condition is declared in this pricing key.", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "input: with_video_input", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" } ] }, { "basis": "The video-token rate is the primary price reference. Per-second headline estimates are separate references, not an extra charge.", "dimensions": { "conditions": "audio: without_audio", "quoted_unit": "per 1,000 video tokens" }, "label": "Video-token price", "units": [ { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" } ] }, { "basis": "This estimate is not an additional charge or a fixed rate for the completed generation.", "dimensions": { "forecast_quantity": "one generation estimate" }, "label": "Estimated generation cost", "units": [ { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } ], "request_model_id": "bytedance/seedance-2.5", "route_label": "Ultra", "status_reads": [ "GET /v1/videos/{public_id}", "GET /v1/videos/{public_id}/content" ], "tiers": [], "units": [ { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "input_price", "label": "Input tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "output_price", "label": "Output tokens", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "output_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "output_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_read_price", "label": "Cache read", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "cached_input_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "cached_input_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_price", "label": "Cache write", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "generic_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "generic_cache_creation_token" }, { "amount": null, "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "cache_write_1h_price", "label": "Cache write, 1 hour", "native_amount_usd_per_unit": null, "native_quantity": 1, "native_unit": "one_hour_cache_creation_token", "public_unit_label": "/ 1K tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "in", "unit": "one_hour_cache_creation_token" }, { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" }, { "amount": "0.0128000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_with_video_input", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000128", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "reference", "unit": "video_token" }, { "amount": "0.0214000", "amount_unit": "usd_per_thousand_tokens", "billing_input": false, "estimate_only": true, "key": "video_tokens_without_audio", "label": "Video-token price", "native_amount_usd_per_unit": "0.0000214", "native_quantity": 1, "public_unit_label": "per 1,000 video tokens", "quantity": 1000, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "video_token" }, { "amount": "0.822402", "amount_unit": "usd_per_exact_native_unit", "billing_input": false, "estimate_only": true, "key": "forecast_usd", "label": "Estimated generation cost", "native_amount_usd_per_unit": "0.822402", "native_quantity": 1, "public_unit_label": "estimate before generation", "quantity": 1, "quantity_is_estimate": true, "rate_role": "typed_native_retail_rate", "side": "out", "unit": "request_estimate" } ] } ], "model_aliases": [ { "canonical_model_id": "bytedance/seedance-2.5", "request_model_id": "bytedance/seedance-2.5", "route_label": "Ultra" } ], "name": "ByteDance: Seedance 2.5", "price": { "estimate_only": true, "in": null, "in_label": null, "out": 0.822402, "out_label": "estimate before generation", "scope_label": "Estimated generation cost", "sort_in": null, "sort_out": 0.822402, "varies": false }, "pricing_profiles": [ { "applicability": { "client_selectable": false, "native_profile_selection_pending": true, "scope": "manufacturer_reference" }, "dimensions": { "billable_token_source": "usage.completion_tokens", "draft_mode": { 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