Choose an API
Every option uses
Authorization: Bearer <TOKENLAB_API_KEY>. Volc-compatible requests keep the Volcengine fields but use a TokenLab key instead of AK/SK signing.
Model Choice
seedance-2.0-fast and seedance-2.0-mini reject 1080p and 4k requests. Query the Models API when model availability must be decided at runtime.
Supported Operations
Set
operation explicitly so the API can validate the fields for that generation type.
seedance-2.0 and seedance-2.0-fast accept up to 9 reference images, 3 reference videos, and 3 reference audio files where reference generation is supported. Audio by itself, or text plus audio without an image or video reference, is not supported.
Results And Pricing
Video generation is asynchronous. Store the returned task ID and follow its exactpoll_url until the task reaches a terminal state. See Async Jobs and Polling for retry and timeout guidance.
Pricing depends on the model, output resolution, and input type. Read it from the Pricing API instead of hard-coding it in your product.