models

Ltx

Markdown · JSON

Ltx

Video generation from text and an optional reference image, with negative_prompt support.

About the model

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

ltx accepts a written prompt and an optional image through /v1/videos, producing video. A concrete use is animating a supplied product photograph into a concept shot while describing the desired movement in text. Choose it when a reference image is part of the intended workflow.

The accepted controls are model, prompt, image and negative_prompt. This entry does not pin a more specific LTX edition or expose duration, resolution, frame-rate or audio settings. It therefore supports a reference-based scene request without a promise of exact clip specifications that are absent from the method. Submit once, retain the original task identifiers and collect every actual output from the completed job.

Ailoot Ultra · Video POST /v1/videos ltx

ltx

Lightricks /ltx

Overview

Video generation from text and an optional reference image, with negative_prompt support.

Accepted inputs
Text · Images
Results
Video

Available in Ailoot · inputs & methods

Ailoot Ultra · Video POST /v1/videos
Input types
text, image
Output types
video
FieldTypeRequirementValues & limitsDefault
FieldmodelTypestringRequirementRequiredValues & limits
ltx
Conditions: Use this exact Ailoot routing selector.
Default—
FieldpromptTypestringRequirementRequiredValues & limits
Conditions: Describe the scene and its motion.
Default—
FieldimageTypestring or array<string>RequirementOptionalValues & limits
Conditions: Use your actual publicly reachable image URL or base64 image; the selected model supports image input.
Default—
Fieldnegative_promptTypestringRequirementOptionalValues & limits
Conditions: Describe content to avoid.
Default—
Method parameters and lifecycle
ParameterContract
Parametercontent_typeContractapplication/json
ParameterrequiredContractmodel, prompt
ParameteroptionalContractimage, negative_prompt
Parametermaterial_typesContracttext, image
ParameterconditionsContractUse this exact Ailoot routing selector., Describe the scene and its motion., Use your actual publicly reachable image URL or base64 image; the selected model supports image input., Describe content to avoid.

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/media/assets

GET /v1/media/assets/{asset_id}

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 quantityCharge
ConfigurationBase token ratesRate scheduleBase rateForecast quantity—Billing quantity—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
ConfigurationPer requestRate schedule—Forecast quantity—Billing quantityone requestCharge
Input · Estimate for comparison only $0.1 per request
ConfigurationEstimated generation costRate schedule—Forecast quantityone generation estimateBilling quantity—Charge
Output · Estimated generation cost · Estimate for comparison only $0.1 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 →

Example requests

Ailoot Ultra · Video

curl · create once and retain receiptRead the original taskSave every completed owned asset
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
cat > request.json <<'JSON'
{
  "model": "ltx",
  "prompt": "A cat is walking on grass."
}
JSON
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/videos \
  -H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
  --data-binary @request.json -D response-headers.txt -o result.json
# Create once; retain id, polling_url, original task identifiers and every header.
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
export AILOOT_API_KEY
python3 - <<'PY_STATUS'
import json,os,subprocess
from pathlib import Path
from urllib.parse import urljoin,urlsplit
r=json.loads(Path("result.json").read_text())
u=urljoin("https://api.ailoot.ai",r["polling_url"])
p=urlsplit(u)
if p.scheme!="https" or p.netloc!="api.ailoot.ai" or p.username or p.password:
    raise SystemExit("Unexpected returned polling URL; preserve the response")
subprocess.run(["curl","--fail-with-body","--silent","--show-error",u,"-H","Authorization: Bearer "+os.environ["AILOOT_API_KEY"],"-D","status-headers.txt","-o","status.json"],check=True)
# Read this same original polling_url again while pending.
# Preserve unknown/result_pending_check; do not repeat creation.
PY_STATUS
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
export AILOOT_API_KEY
python3 - <<'PY_ASSETS'
import json,os,subprocess
from pathlib import Path
from urllib.parse import urljoin,urlsplit
r=json.loads(Path("status.json").read_text())
roles={}
def visit(v,path=""):
    if isinstance(v,dict):
        for k,x in v.items(): visit(x,path+"/"+k)
    elif isinstance(v,list):
        for i,x in enumerate(v): visit(x,path+"/"+str(i))
    elif isinstance(v,str):
        u=urljoin("https://api.ailoot.ai",v); p=urlsplit(u)
        if p.scheme=="https" and p.netloc=="api.ailoot.ai" and not p.username and not p.password and p.path.startswith("/v1/media/assets/") and p.path.endswith("/content"):
            roles.setdefault(u,[]).append(path)
visit(r)
if not roles: raise SystemExit("No completed owned assets; retain the original status")
manifest=[]
for i,(u,paths) in enumerate(roles.items()):
    target=Path(f"asset-{i}.bin")
    subprocess.run(["curl","--fail-with-body","--silent","--show-error",u,"-H","Authorization: Bearer "+os.environ["AILOOT_API_KEY"],"-o",str(target)],check=True)
    raw=target.read_bytes()
    if not raw: raise SystemExit("Empty asset; retain original status and metadata")
    ext="glb" if raw[:4]==b"glTF" else "png" if raw[:8]==b"\x89PNG\r\n\x1a\n" else "jpg" if raw[:3]==b"\xff\xd8\xff" else "webp" if raw[:4]==b"RIFF" and raw[8:12]==b"WEBP" else "mp4" if raw[4:8]==b"ftyp" else "bin"
    name=f"asset-{i}.{ext}"
    if target.name!=name: target.rename(name)
    manifest.append({"file":name,"response_paths":paths,"bytes":len(raw)})
Path("asset-manifest.json").write_text(json.dumps(manifest,indent=2))
print("Saved",len(manifest),"unique owned assets; every response role retained")
PY_ASSETS

Receive and save results

Ailoot Ultra · Video

  • GET /v1/videos/{request_id}
  • GET /v1/videos/generations/{request_id}
  • GET /v1/videos/{request_id}/content
  • GET /v1/media/assets
  • GET /v1/media/assets/{asset_id}
Keep all completed results

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

Retain the complete response and headers, original identifiers, every actual output and all usage/accounting fields. Save each unique owned asset and retain every role pointing to it.

If the original response needs checking

Keep the returned public task or operation id and all headers. Read only the original task; unknown or result_pending_check does not authorize another creation.

Response fields
FieldType
FieldidTypestring
Fieldpolling_urlTypestring
Fieldprovider_task_idTypestring
Fieldtask_idTypestring
FieldstatusTypestring
Fieldvideo_urlTypestring

Aliases

Model aliases

Ailoot Ultra ltx

Method path aliases

/v1/videos/generations

Related caller IDs

ltx

FAQ · Ltx
What inputs and results are available?

POST /v1/videos · ltx: text, image → video

Which fields does the request use?

POST /v1/videos · ltx: model, prompt, image, negative_prompt

More details

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Spending in your history
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