Overview and Formats

Seedance 2.0 supports both the official content format and ModelSell generic video format.

Seedance 2.0 uses asynchronous video tasks: create a task, poll by task ID, then read the result video from content.video_url.

Item	Value
Official create endpoint	`POST /api/v3/contents/generations/tasks`
Official polling endpoint	`GET /api/v3/contents/generations/tasks/{task_id}`
Generic video create endpoint	`POST /v1/video/generations` or `POST /v1/videos`
Asset upload endpoint	`POST /api/assets/upload`
Asset detail endpoint	`GET /api/assets/{id}`
Supported models	`doubao-seedance-2-0-260128`, `doubao-seedance-2-0-fast-260128`

Use the official format when you need exact content[] modality roles. Use the generic video format when your integration already targets /v1/video/generations or /v1/videos.

For reusable image, video, or audio references, upload a URL asset with /api/assets/upload. After the asset becomes Active, pass it as asset://<asset_id> in either the official content format or the generic video format.