API docs · Reference
Changelog
Change history of /v1.
/v1 is strictly versioned: we only add fields, error codes and optional parameters, and never change existing semantics. Breaking changes ship only in /v2.
2026-11-03
- Domestic site (cn) launched (priced in CNY)
- Real-person verification: start with POST /v1/assets/{id}/portrait-authorizations; after the person completes the H5 face check, the asset can be used with that model. Adds the auth_ prefix and the verification object
- Assets with trust_class virtual_avatar can be used for generation (synced to the processing channel's asset library on first use)
- Image and video assets are no longer content-moderated on intake, only format and safety checks; prompt and asset-name checks are unchanged
- Error code no_available_channel (503) is also returned directly when starting a real-person verification
2026-11-02
- Global site launched (priced in USD), Seedance 2.5 listed on the global site
- Task results add upstream_video_url and upstream_url_expires_at (provided when the account is set to return the upstream URL)
- Rate-limited responses add X-RateLimit-Reset; openapi.json now covers multipart upload, asset update and asset group endpoints
2026-10-30
- First public release: Seedance 2.0 Standard available on the China site
- Multi-channel recovery with an unchanged task ID throughout
- Webhook signature v1 (HMAC-SHA256)