Seedance 2

seedance-2 is the standard model alongside seedance-2-fast and seedance-2-mini; all three are available in Global / CN and support image or video input.

Quick Facts

Item	Value
Model ID	`seedance-2`
Type	Video
Region	Global / CN
Best For	Standard and high-resolution video generation
Priority	High; use Fast for speed or Mini for lightweight jobs

Recommended Request Shape

It still uses the unified POST /v1/generations endpoint.

{
  "model": "seedance-2",
  "prompt": "A product teaser video, clean white background, smooth motion, premium style",
  "aspect_ratio": "16:9",
  "resolution": "1080p",
  "duration": 5
}

Field Reference

Field	Type	Required	Default	Description
`model`	`string`	Yes	-	Must be `seedance-2`
`prompt`	`string`	Yes	-	Video prompt
`reference_videos`	`string[]`	No	-	Reference video URL list, up to 3 files; enables video-input pricing
`input_video_duration`	`number`	No	Output duration	Processed input-video seconds
`reference_images`	`string[]`	No	-	Reference image URL list, up to 9 files
`reference_audios`	`string[]`	No	-	Reference audio URL list, up to 3 files
`generate_audio`	`boolean`	No	`true`	Whether to generate audio
`aspect_ratio`	`string`	No	`21:9`	Output aspect ratio
`resolution`	`string`	No	`720p`	Output resolution
`duration`	`integer`	No	`5`	Duration in seconds

Supported Enums

Field	Values
`aspect_ratio`	`21:9` `16:9` `4:3` `1:1` `3:4` `9:16`
`resolution`	`480p` `720p` `1080p` `4K`
`duration`	`4` to `15` seconds

`seedance-2` Integration Notes

It supports reference_images, reference_videos, and reference_audios; video-input jobs bill processed input seconds plus generated output seconds.
The standard model supports up to 4K; Fast and Mini support 480p / 720p.

China Video Example

{
  "model": "seedance-2",
  "prompt": "A product teaser video, clean white background, smooth motion, premium style",
  "aspect_ratio": "16:9",
  "resolution": "1080p",
  "duration": 5
}

Video Models