Seedance 2.0 Fast API

In shortThe faster, lower-priced Seedance 2.0 tier. Same request shape and reference inputs as 2.0; most high-volume shot work starts here. Call it as "model": "seedance-2.0-fast" on https://models.dawnwood.ai/v1/video/generations; you pay per requested second, only when the generation succeeds.

Price

Compared: fal lists Seedance 2.0 Fast at $0.242/s at 720p. BytePlus ModelArk bills it directly at $5.6 per million output tokens, about $0.122/s at 720p by our measurement of roughly 21,700 tokens per output second; buying direct needs a BytePlus account and is billed in tokens. More providers: Seedance API pricing compared.

Parameters

Example request

# 1. create a task
curl -s https://models.dawnwood.ai/v1/video/generations \
  -H "Authorization: Bearer $DAWNWOOD_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: shot-0001" \
  -d '{
    "model": "seedance-2.0-fast",
    "content": [
      {"type": "text", "text": "A woman in a red coat turns at the top of a rain-soaked stairwell, slow push-in"},
      {"type": "image_url", "image_url": {"url": "https://example.com/lead.png"}, "role": "reference_image"}
    ],
    "resolution": "720p", "ratio": "9:16", "duration": 5, "generate_audio": true
  }'
# -> {"id": "cgt-dw-..."}

# 2. poll until status is succeeded / failed / cancelled
curl -s https://models.dawnwood.ai/v1/video/generations/cgt-dw-... \
  -H "Authorization: Bearer $DAWNWOOD_API_KEY"

Polling, errors, billing fields and the ModelArk alias path are in the API reference. Only successful generations are charged; the API spends purchased credits only.

Other models