Source: https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/ Canonical: https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/ Language: en # ByteDance: Seedance 1.0 Pro [Markdown](https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/index.md) · [JSON](https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/facts.json) ## [ByteDance: Seedance 1.0 Pro](https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/) Seedance 1.0 Pro generates silent video from text or an opening image. Describe the action and camera, or animate an existing composition, with 2–12-second duration, 24 fps and explicit output framing and resolution controls. - [**Ailoot Ultra · Video** `POST /v1/videos` `doubao-seedance-1-0-pro-250528`](https://ailoot.ai/models/en/doubao-seedance-1-0-pro-250528/#method-0) 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 1.0 Pro generates a video from text or an image-guided scene. The selector doubao-seedance-1-0-pro-250528 supports both input modes, so the starting point can be a written concept or an existing visual composition. Use a text brief to create a new scene, or provide an image when the subject, arrangement and opening view should be established visually. This 1.0 profile produces silent video; synchronized sound belongs to the separately described 1.5 Pro profile. For text-to-video, specify the subject, environment, movement, framing and camera in one coherent scene. The documented example moves gradually from a field of daisies to a close view of a flower with dew on its petals. That structure is useful for other reveals: establish the setting, move toward the subject and finish on the detail that matters. For a product concept, describe the material and lighting as well as the action, and give the camera an achievable route through the short shot. For image-to-video, place the reference in an image\_url content item and explain what should change from that starting view. A prepared portrait can define the person and crop while the brief describes a small turn, moving hair or a gentle camera pullback. A product still can establish the object and background while the prompt asks for a controlled reveal. Keep the requested movement compatible with the source composition; an image of one side of an object does not supply an unseen accurate view of every other side. The image field accepts an accessible URL or a data URL containing Base64 image data. The documented formats are JPEG, PNG, WEBP, BMP, TIFF and GIF. Images must be smaller than 30 MB, with a width-to-height ratio strictly between 0.4 and 2.5 and each dimension strictly between 300 and 6000 pixels. Prepare a clear source at the intended crop rather than relying on a thumbnail whose defining details are already missing. For image-to-video generation, the guide recommends adaptive framing to follow the reference proportions. The documented 1.0 duration is two to twelve seconds and the frame rate is 24 fps. The output controls include 480p, 720p and 1080p tiers, with 1080p as the Pro default; the guide excludes 1080p in the reference-image scenario. Fixed shapes include 16:9, 4:3, 1:1, 3:4, 9:16 and 21:9. Choose an image-compatible combination for an image-led shot rather than transferring every text-to-video setting unchanged. Inspect the actual returned framing before placing the clip in a layout. Seed and watermark controls are documented alongside camerafixed. The camera-fixed instruction is not supported in the reference-image scenario, and where it applies the guide does not guarantee a perfectly stationary camera. Prompt-embedded parameter instructions take precedence over separate optional fields. Keep one authoritative setting for duration, resolution and ratio, and make the camera description agree with it. This avoids a scene brief silently overriding the settings selected for the request. Usage is measured in video tokens: output width × output height × frame rate × output duration / 1024. The completed task reports this quantity as usage.completion\_tokens. Retain the reported usage with the finished clip and its requested settings. The workflow returns a task identifier first and a completed video location after processing. Preserve the identifier while checking queued or running status; a succeeded task supplies content.video\_url and usage information. The documented generated-file retention is seven days. Save the completed clip, source image and exact prompt as the revision record, then inspect subject appearance, movement, image continuity and the closing composition across the whole result. **Ailoot Ultra · Video** `POST /v1/videos` `doubao-seedance-1-0-pro-250528` [`doubao-seedance-1-0-pro-250528`](https://ailoot.ai/models/en/#m=doubao-seedance-1-0-pro-250528&route=Ultra&caller=doubao-seedance-1-0-pro-250528&fmt=videos) ByteDance /`doubao-seedance-1-0-pro-250528` ### Overview Seedance 1.0 Pro generates silent video from text or an opening image. Describe the action and camera, or animate an existing composition, with 2–12-second duration, 24 fps and explicit output framing and resolution controls. Accepted inputs Text · Images Results Video ### Available in Ailoot · inputs & methods **Ailoot Ultra · Video** `POST /v1/videos` Input types `text`, `image` Output types `video` | Field | Type | Requirement | Values & limits | Default | | --- | --- | --- | --- | --- | | Field`model` | Type`string` | RequirementRequired | Values & limits doubao-seedance-1-0-pro-250528 | Default— | | Field`content` | Type`array` | RequirementRequired | Values & limits Conditions: Native text/media objects; outer array must be non-empty. Nested node types are not validated by this Ailoot generic constructor. | Default— | | Field`duration` | Type`integer` | RequirementOptional | Values & limits Minimum: 2 Maximum: 12 Conditions: Primary 1.x schema 2–12; later shared description names 1.5 as 4–12 or -1. Example uses mutually documented 5. | Default5 | | Field`resolution` | Type`string` | RequirementOptional | Values & limits Conditions: Confirmed text-to-video values are 480p and 1080p. Reference-image input excludes 1080p. The shared 720p enum conflicts with model-specific prose, so 720p support remains unresolved in both modes. | Default1080p | | Field`ratio` | Type`string` | RequirementOptional | Values & limits 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, adaptive Conditions: Scene/model-dependent defaults; image-input documentation recommends adaptive. | Default— | | Field`service_tier` | Type`string` | RequirementOptional | Values & limits default, flex Conditions: default=online, flex=offline; choose before creation. | Defaultdefault | | Field`seed` | Type`integer` | RequirementRequired | Values & limits Minimum: -1 Maximum: 4,294,967,295 | Default-1 | | Field`camerafixed` | Type`boolean` | RequirementRequired | Values & limits Conditions: Required by Ailoot; reference-image camera control is documented as unsupported and effect is not guaranteed. | Defaultfalse | | Field`watermark` | Type`boolean` | RequirementRequired | Values & limits | Defaultfalse | | Field`execution_expires_after` | Type`integer` | RequirementRequired | Values & limits Minimum: 3,600 Maximum: 259,200 Unit: seconds | Default172,800 | Input material combinations Method parameters and lifecycle | Parameter | Contract | | --- | --- | | Parameter`content_type` | Contractapplication/json | | Parameter`required` | Contractcamerafixed, content, execution\_expires\_after, model, seed, watermark | | Parameter`optional` | Contractduration, resolution, ratio, service\_tier | | Parameter`material_types` | Contracttext, image | | Parameter`additional_properties` | Contracttrue | | Parameter`validation_scope` | ContractAiloot checks the required field types and a non-empty model/content array. Other request fields are preserved for the selected model. | | Parameter`image_constraints` | Contract{"formats":\["jpeg","png","webp","bmp","tiff","gif"\],"aspect\_ratio\_exclusive":\[0.4,2.5\],"dimensions\_px\_exclusive":\[300,6000\],"file\_size\_mb\_exclusive":30,"mb\_bytes\_definition":null} | Method aliases: `/v1/videos/generations` Lifecycle: `submit_once_poll_original` `GET /v1/videos/{request_id}` `GET /v1/videos/generations/{request_id}` `GET /v1/videos/{request_id}/content` `GET /v1/videos/generations/{request_id}/content` Create once and retain returned public id/polling\_url. Poll the original job; download actual owned content.video\_url after succeeded. ### 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. | Configuration | Rate schedule | Forecast quantity | Billing unit | Charge | | --- | --- | --- | --- | --- | | ConfigurationBase token rates | Rate scheduleBase rate | Forecast quantity— | Billing unit— | 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 | | ConfigurationUltra | Rate schedule— | Forecast quantity— | Billing unitper 1,000 video tokens | Charge Output · Estimate for comparison only **$0.0044** per 1,000 video tokens | | ConfigurationEstimated generation cost | Rate schedule— | Forecast quantityone generation estimate | Billing unit— | Charge Output · Estimated generation cost · Estimate for comparison only **$0.2112** estimate before generation This estimate is not an additional charge or a fixed rate for the completed generation. | Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. [How reservation and settlement work →](https://ailoot.ai/docs/en/billing/reserve/) ### Example requests #### Ailoot Ultra · Video curl · create videocurl · read original taskcurl · download owned video ```bash set -eu : "${AILOOT_API_KEY:?Set your Ailoot API key}" cat > request.json <<'JSON_REQUEST' {"model":"doubao-seedance-1-0-pro-250528","content":[{"type":"text","text":"女孩抱着狐狸，女孩睁开眼，温柔地看向镜头，狐狸友善地抱着，镜头缓缓拉出，女孩的头发被风吹动"}],"resolution":"480p","ratio":"1:1","duration":5,"service_tier":"default","seed":-1,"camerafixed":false,"watermark":false,"execution_expires_after":172800} JSON_REQUEST curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/videos \ -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \ --data-binary @request.json -D response-headers.txt -o result.json ``` ```bash set -eu : "${AILOOT_API_KEY:?Set your Ailoot API key}" python3 - <<'PY_POLL' import json from pathlib import Path from urllib.parse import quote,urljoin,urlsplit r=json.loads(Path("result.json").read_text()) i=r.get("id") if not isinstance(i,str) or not i.startswith("native302_"):raise SystemExit("Keep original response/headers/id; do not resubmit creation.") u=urljoin("https://api.ailoot.ai",r.get("polling_url") or "/v1/videos/"+quote(i,safe="")) p=urlsplit(u) if p.scheme!="https" or p.netloc!="api.ailoot.ai" or not p.path.startswith("/v1/videos/"):raise SystemExit("Use actual Ailoot lookup path.") Path("poll-url.txt").write_text(u) PY_POLL curl --fail-with-body --silent --show-error "$(cat poll-url.txt)" -H "Authorization: Bearer $AILOOT_API_KEY" -D status-headers.txt -o status.json ``` ```bash set -eu python3 - <<'PY_ASSETS' import json from pathlib import Path from urllib.parse import urlsplit r=json.loads(Path("status.json").read_text()) if r.get("status")!="succeeded":raise SystemExit("Poll same original job until an owned result is returned.") u=r.get("content",{}).get("video_url") urls=[u] if isinstance(u,str) else u if not isinstance(urls,list) or not urls:raise SystemExit("No completed video URL.") for u in urls: if not isinstance(u,str):raise SystemExit("Invalid returned URL.") p=urlsplit(u) if p.scheme!="https" or p.netloc!="api.ailoot.ai" or not p.path.startswith("/v1/media/assets/") or not p.path.endswith("/content") or not p.query:raise SystemExit("Wait for actual Ailoot-owned signed result.") Path("asset-urls.txt").write_text("\n".join(urls)+"\n") PY_ASSETS index=0 while IFS= read -r asset_url; do curl --fail-with-body --silent --show-error "$asset_url" -o "video-${index}.bin" index=$((index + 1)) done < asset-urls.txt ``` ### Receive and save results #### Ailoot Ultra · Video Native JSON with public id/polling\_url. After publication content.video\_url contains Ailoot-owned signed URL(s); before publication selected output URLs are blanked. - `GET /v1/videos/{request_id}` - `GET /v1/videos/generations/{request_id}` - `GET /v1/videos/{request_id}/content` - `GET /v1/videos/generations/{request_id}/content` ##### Keep all completed results Save every completed video or returned file; retrieve every actual returned asset URL. Retain every actual URL in content.video\_url; index must identify a real returned output. ##### If the original response needs checking Preserve original response/headers/id and poll that operation; never resubmit unknown creation. Response fields | Field | Type | | --- | --- | | Field`id` | Typestring | | Field`provider_task_id` | Typestring | | Field`polling_url` | Typestring | | Field`status` | Typestring when supplied | | Field`content.video_url` | Typestring\|string\[\] | | Field`usage` | Typeobject when supplied | Errors and next steps | Response | Condition | Next step | | --- | --- | --- | | Response400 · `invalid_request_error` | ConditionInvalid JSON/model/required field types or content index. | Next step | | Response401 · `authentication_error` | ConditionInvalid Ailoot API key. | Next step | | Response404 · `not_found_error` | ConditionTask/output absent or not owned by same user/API key/group. | Next step | | Response502 · `result_pending_check` | ConditionOriginal submit/status incomplete; preserve original ID, no resubmit. | Next step | | Response503 · `result_pending_check` | ConditionOriginal media/route/settlement is being checked; continue original operation. | Next step | ### Aliases #### Model aliases **Ailoot Ultra** [`doubao-seedance-1-0-pro-250528`](https://ailoot.ai/models/en/#m=doubao-seedance-1-0-pro-250528&route=Ultra&caller=doubao-seedance-1-0-pro-250528&fmt=videos) #### Method path aliases `/v1/videos/generations` #### Related caller IDs [`doubao-seedance-1-0-pro-250528`](https://ailoot.ai/models/en/#m=doubao-seedance-1-0-pro-250528&route=Ultra&caller=doubao-seedance-1-0-pro-250528&fmt=videos) FAQ · ByteDance: Seedance 1.0 Pro What inputs and results are available? `POST /v1/videos` · `doubao-seedance-1-0-pro-250528`: `text`, `image` → `video` Which fields does the request use? `POST /v1/videos` · `doubao-seedance-1-0-pro-250528`: `model`, `content`, `duration`, `resolution`, `ratio`, `service_tier`, `seed`, `camerafixed`, `watermark`, `execution_expires_after` What limits apply? `POST /v1/videos` · `doubao-seedance-1-0-pro-250528`: `duration.minimum`: `2`; `duration.maximum`: `12`; `seed.minimum`: `-1`; `seed.maximum`: `4294967295`; `execution_expires_after.minimum`: `3600`; `execution_expires_after.maximum`: `259200` Connect Ailoot to Claude Code, OpenCode, Hermes or your own app. ## The company and its project portfolio The company and its project portfolio: millions of customers; monthly sales in the billions. ## Buy tokens at a discount. 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