Seedance 2.5

Seedance 2.5 API for video generation at $0.10 per second. 480p, native audio, first/last frame and references. Call it on /v1/videos and pay as you go in USD; failed tasks are not charged.

Price
$0.10
Unit
per second
Type
Video generation
Endpoint
/v1/videos

Pricing

$0.10 per second

Estimated $0.80

USD, charged from your prepaid balance at the listed price. List price; a few keys on special plans may differ.Failed and cancelled tasks are not charged. How billing works

Make an AI short drama with itRooYun · AI short-drama canvas: paste a script and it breaks it into a storyboard, characters and scenes, then generates the images, videos and voices on the canvas through to a finished episode. Your agent in Claude Code, Codex or Cursor can build the canvas for you.

Open RooYun

What it does

480p, native audio, first/last frame and references

4–15 s · 480p · native audio · up to 9 reference images

Model ID
seedance-2.5
Modes
First & last frame, Image to video, Reference images
Duration
4–15 s
Resolutions
480p
Reference images
Up to 9
Native audio
Yes

API

POST /v1/videos

Runs as an asynchronous task: create it, poll its status, then download the file. Set BIGMODEL_API_KEY to your API key first.

cURL
curl https://bigmodel.io/v1/videos \
  -H "Authorization: Bearer $BIGMODEL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: lantern-take-1" \
  -d '{
    "model": "seedance-2.5",
    "prompt": "The lantern drifts slowly to the right, mist moving over the water",
    "image": "https://example.com/lantern.png",
    "seconds": 5
  }'

# Poll until status is succeeded, then download
curl https://bigmodel.io/v1/videos/TASK_ID \
  -H "Authorization: Bearer $BIGMODEL_API_KEY"
curl -L -o video.mp4 https://bigmodel.io/v1/videos/TASK_ID/content \
  -H "Authorization: Bearer $BIGMODEL_API_KEY"

Python, Node.js, every input field and error handling are in the guide. Guide →

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