Seedance 2.0 API

Seedance 2.0 支持广泛视频工作流，包括文生视频、帧控制、参考图视频、视频生视频和可选音频输入。

模型 key

doubao/seedance-2.0-fast — Seedance 2.0 Fast
doubao/seedance-2.0 — Seedance 2.0

支持的 mode 与输入

模型	Mode	名称	输入要求
`doubao/seedance-2.0-fast`	`text_to_video`	文生视频	Prompt max 20000 chars Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav
`doubao/seedance-2.0-fast`	`frames_to_video`	首尾帧生成视频	Prompt max 20000 chars Images `start_frame,end_frame`: 1-2 files, 30 MB, formats jpg, png, webp, bmp, gif
`doubao/seedance-2.0-fast`	`reference_to_video`	参考图生成视频	Prompt max 20000 chars Images `reference`: 0-9 files, 30 MB, formats jpeg, png, webp, bmp, tiff, gif Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav
`doubao/seedance-2.0-fast`	`video_to_video`	视频生成视频	Prompt max 20000 chars Images `reference`: 0-9 files, 30 MB, formats jpeg, png, webp, bmp, tiff, gif Videos: 1-3 files, 50 MB, max 15s, formats mp4, mov Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav
`doubao/seedance-2.0`	`text_to_video`	文生视频	Prompt max 20000 chars Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav
`doubao/seedance-2.0`	`frames_to_video`	首尾帧生成视频	Prompt max 20000 chars Images `start_frame,end_frame`: 1-2 files, 30 MB, formats jpg, png, webp, bmp, gif
`doubao/seedance-2.0`	`reference_to_video`	参考图生成视频	Prompt max 20000 chars Images `reference`: 0-9 files, 30 MB, formats jpeg, png, webp, bmp, tiff, gif Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav
`doubao/seedance-2.0`	`video_to_video`	视频生成视频	Prompt max 20000 chars Images `reference`: 0-9 files, 30 MB, formats jpeg, png, webp, bmp, tiff, gif Videos: 1-3 files, 50 MB, max 15s, formats mp4, mov Audio: 0-3 files, 15 MB, max 15s, formats mp3, wav

参数

模型	参数	默认值	可选值	适用 mode
`doubao/seedance-2.0-fast`	`duration`	`5s`	`4s`, `5s`, `6s`, `7s`, `8s`, `9s`, `10s`, `11s`, `12s`, `13s`, `14s`, `15s`	全部 mode
`doubao/seedance-2.0-fast`	`resolution`	`720p`	`480p`, `720p`	全部 mode
`doubao/seedance-2.0-fast`	`aspect_ratio`	`16:9`	`16:9`, `9:16`, `1:1`, `4:3`, `3:4`, `21:9`, `adaptive`	全部 mode
`doubao/seedance-2.0-fast`	`audio`	`false`	`true`, `false`	全部 mode
`doubao/seedance-2.0-fast`	`web_search`	`false`	`true`, `false`	全部 mode
`doubao/seedance-2.0`	`duration`	`5s`	`4s`, `5s`, `6s`, `7s`, `8s`, `9s`, `10s`, `11s`, `12s`, `13s`, `14s`, `15s`	全部 mode
`doubao/seedance-2.0`	`resolution`	`720p`	`480p`, `720p`, `1080p`	全部 mode
`doubao/seedance-2.0`	`aspect_ratio`	`16:9`	`16:9`, `9:16`, `1:1`, `4:3`, `3:4`, `21:9`	全部 mode
`doubao/seedance-2.0`	`audio`	`false`	`true`, `false`	全部 mode
`doubao/seedance-2.0`	`web_search`	`false`	`true`, `false`	全部 mode

价格

模型	价格
`doubao/seedance-2.0-fast`	每秒 2 credits；参数倍率：`resolution`=`{"480p":1,"720p":2}`
`doubao/seedance-2.0`	每秒 3 credits；参数倍率：`resolution`=`{"480p":1,"720p":2,"1080p":4}`

生产建议

显式传入 mode。
只使用上表列出的参数值。
媒体输入类 mode 请先用 POST /api/v1/files 上传素材。
如果页面包含多个变体，请使用你真正需要的模型 key。

示例：文生视频

curl https://buble.ai/api/v1/generations \
  -H "Authorization: Bearer $BUBLE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao/seedance-2.0-fast",
    "mode": "text_to_video",
    "prompt": "A cinematic product launch shot with slow camera movement, premium lighting, and realistic motion",
    "duration": "5s",
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "audio": "false",
    "web_search": "false"
  }'

示例：素材驱动视频

curl https://buble.ai/api/v1/generations \
  -H "Authorization: Bearer $BUBLE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao/seedance-2.0-fast",
    "mode": "frames_to_video",
    "prompt": "Animate the source into a polished cinematic motion shot with natural camera movement",
    "start_frame": "https://example.com/start.png",
    "duration": "5s",
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "audio": "false",
    "web_search": "false"
  }'

Seedance 2.0 API

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