Seedance 2.5 Lite API reference

Pricing (flat rate)

One price per clip; it does not move with the length (15 or 30 seconds), the aspect ratio or the number of reference images. Charged only on success; failed jobs are refunded in full.

Autenticação

All requests carry the API key in the header:

Authorization: Bearer YOUR_API_KEY

Generate a video

# Text-to-video: 15 seconds (the default) at 720p, $2.50.
curl -X POST https://api.apimodels.app/v1/video/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.5-lite",
    "prompt": "A small paper boat drifts along a rain-soaked city gutter at dusk, low tracking shot, neon reflections",
    "duration": 15,
    "aspect_ratio": "16:9"
  }'

# Reference images: up to 9 JPG or PNG, public HTTPS URLs (data URIs work too).
# They guide subjects and style; they are not a first frame. Name them by number.
curl -X POST https://api.apimodels.app/v1/video/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.5-lite",
    "prompt": "Product spot: the serum bottle from image 1 stands on the wooden table from image 2, morning light sweeps across, slow push-in to the label",
    "reference_image_urls": [
      "https://example.com/serum.png",
      "https://example.com/table.jpg"
    ],
    "duration": 30,
    "aspect_ratio": "9:16"
  }'

# Poll every 10-15 seconds until state == "completed";
# data.resultUrls[0] is the video. Result files are kept 30 days.
curl "https://api.apimodels.app/v1/video/generations?task_id=TASK_ID" \
  -H "Authorization: Bearer YOUR_API_KEY"

Parâmetros

What this tier does not do

Each of these returns a 400 at create time: no task, no charge, and nothing is quietly reshaped into a different clip. Use seedance-2.5 when you need them.

Notas

• Async: plan on several minutes per clip. In our own test on 2026-10-22, a 30-second 720p clip came back in 401 seconds as 1280x720, 24 fps H.264 with an AAC soundtrack and no watermark. Create returns a taskId; poll every 10-15 seconds, or pass callback_url.
• Some jobs fail on this budget tier. Failed jobs are refunded in full; retry, or use seedance-2.5 for work that must succeed.
• The old model name seedance-2.5-global still works and now runs on Seedance 2.5 Lite (it defaults to 30 seconds when duration is omitted), at the same $2.50 per clip.
• Reference images must stay reachable for the whole job; give presigned URLs enough lifetime.
• Result files are deleted after 30 days; download or re-host anything you need to keep.
• 402 means an insufficient balance; 401 means the key is not valid.
• For first/last frames, video or audio references, 480p, any length from 4 to 30 seconds, or silent output, see seedance-2.5.

Try it in the Playground