Seedance 2.5 API: slugs, parameters, and availability

Check Seedance 2.5 availability, select its T2V/I2V slug, fetch the schema, and submit a generation.

Seedance 2.5 supports two public API modes:

Mode	API slug
Text-to-video	`seedance-2-5-t2v`
Image-to-video	`seedance-2-5-i2v`

Check availability in your environment

Model activation is controlled separately from the code deployment. Use a slug only when GET /v1/models returns it for your API key. If it is not listed yet, a generation request returns model_not_found.

To generate without the API, open the Seedance 2.5 landing. Clipia exposes it in the model catalog only after both modes are active together.

Check availability

curl -s https://api.clipia.ai/v1/models \
  -H "Authorization: Bearer $CLIPIA_KEY" \
  | jq '.data[] | select(.slug | startswith("seedance-2-5"))'

const { data } = await clipia.models.list();
const seedance25 = data.filter(({ slug }) => slug.startsWith('seedance-2-5'));

if (seedance25.length === 0) {
  throw new Error('Seedance 2.5 is not active in this environment');
}

catalog = client.models.list()
seedance_25 = [
    model for model in catalog["data"]
    if model["slug"].startswith("seedance-2-5")
]

if not seedance_25:
    raise RuntimeError("Seedance 2.5 is not active in this environment")

Confirmed limits

Parameter	Values
Prompt	up to `30000` characters
Duration	4–30 seconds
Resolution	`480p`, `720p`
Aspect ratio	`16:9`, `9:16`, `1:1`, `4:3`, `3:4`, `21:9`, `adaptive`
Reference images	up to 30
Reference videos	up to 10
Reference audio	up to 10
Native audio	`generate_audio: true`

GET /v1/models/{slug} returns the exact public fields for the selected mode. Treat that live schema as authoritative over this static summary.

Fetch schema and price

curl https://api.clipia.ai/v1/models/seedance-2-5-t2v \
  -H "Authorization: Bearer $CLIPIA_KEY"

Before submit, send the same input to POST /v1/models/seedance-2-5-t2v/estimate. Cost depends on duration, resolution, and native audio generation.

Submit text-to-video

curl -X POST https://api.clipia.ai/v1/models/seedance-2-5-t2v \
  -H "Authorization: Bearer $CLIPIA_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "input": {
      "prompt": "One continuous cinematic tracking shot through a storm",
      "duration": 10,
      "resolution": "720p",
      "aspect_ratio": "16:9",
      "generate_audio": true
    }
  }'

For image-to-video, use seedance-2-5-i2v and pass the image field exposed by its live input_schema. Do not copy internal field names from another integration.

Explicit fallback

If Seedance 2.5 is absent from the live catalog, an explicit fallback can use seedance-2-fast-t2v or seedance-2-fast-i2v. Do not silently replace the model when the user explicitly selected version 2.5.