seedance

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Install the belt CLI skill:
npx skills add belt-sh/cli

安装belt CLI技能：
npx skills add belt-sh/cli

Seedance 2.0 Video Generation

Seedance 2.0 视频生成

Generate videos with synchronized audio using ByteDance's Seedance 2.0 via inference.sh CLI.

通过inference.sh CLI，使用ByteDance的Seedance 2.0生成带同步音频的视频。

Quick Start

快速开始

Requires inference.sh CLI (
belt
). Install instructions

bash

belt login

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "a jazz band performing in a dimly lit club",
  "generate_audio": true
}'

需要inference.sh CLI（
belt
）。安装说明

bash

belt login

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "a jazz band performing in a dimly lit club",
  "generate_audio": true
}'

Models

模型

Model	App ID	Best For
Seedance 2.0	`bytedance/seedance-2-0`	Best quality, up to 1080p
Seedance 2.0 Fast	`bytedance/seedance-2-0-fast`	Faster generation, up to 720p
Seedance 2.0 Studio	`bytedance/seedance-2-0-studio`	Quality + private asset library for portrait consistency
Seedance 2.0 Studio Fast	`bytedance/seedance-2-0-studio-fast`	Fast + private asset library for portrait consistency

All models support text-to-video, image-to-video, multimodal reference-to-video, and synchronized audio generation. Studio variants automatically upload reference images to the BytePlus private virtual portrait library for enhanced character consistency - particularly useful for faces and branded characters.

模型	应用ID	适用场景
Seedance 2.0	`bytedance/seedance-2-0`	最佳画质，最高1080p
Seedance 2.0 Fast	`bytedance/seedance-2-0-fast`	生成速度更快，最高720p
Seedance 2.0 Studio	`bytedance/seedance-2-0-studio`	兼顾画质与私有资产库，保证人像一致性
Seedance 2.0 Studio Fast	`bytedance/seedance-2-0-studio-fast`	生成速度快且配备私有资产库，保证人像一致性

所有模型均支持文本转视频、图片转视频、多模态参考素材转视频，以及同步音频生成。Studio变体可自动将参考图片上传至BytePlus私有虚拟人像库，增强角色一致性——尤其适用于人脸和品牌角色。

Modes

生成模式

The model determines the generation mode from your inputs. These modes are mutually exclusive - use either first-frame/last-frame OR reference inputs, not both.

Mode	Inputs	Description
Text-to-Video	`prompt` only	Generate video from text description
Image-to-Video	`prompt` + `image`	Animate a still image (first frame)
First+Last Frame	`prompt` + `image` + `end_image`	Control start and end frames
Multimodal Reference	`prompt` + `reference_images` / `reference_videos` / `reference_audios`	Guide generation with reference material

模型会根据输入内容自动判断生成模式。这些模式互斥——请选择使用首帧/末帧输入或参考素材输入，不可同时使用。

模式	输入参数	描述
文本转视频	仅 `prompt`	根据文本描述生成视频
图片转视频	`prompt` + `image`	将静态图片动化为视频（作为首帧）
首帧+末帧	`prompt` + `image` + `end_image`	控制视频的起始和结束帧
多模态参考	`prompt` + `reference_images` / `reference_videos` / `reference_audios`	借助参考素材引导视频生成

Examples

示例

Text-to-Video with Audio

带音频的文本转视频

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "ocean waves crashing on rocks during a storm, dramatic cinematic shot",
  "generate_audio": true,
  "duration": 10,
  "ratio": "16:9"
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "ocean waves crashing on rocks during a storm, dramatic cinematic shot",
  "generate_audio": true,
  "duration": 10,
  "ratio": "16:9"
}'

Fast Mode (Cheaper)

快速模式（成本更低）

bash

belt app run bytedance/seedance-2-0-fast --input '{
  "prompt": "a butterfly landing on a flower in slow motion",
  "generate_audio": true
}'

bash

belt app run bytedance/seedance-2-0-fast --input '{
  "prompt": "a butterfly landing on a flower in slow motion",
  "generate_audio": true
}'

Image-to-Video

图片转视频

Animate a still image into a video:

bash

belt app run bytedance/seedance-2-0 --input '{
  "image": "https://your-image.jpg",
  "prompt": "gentle camera movement, leaves rustling in the wind",
  "generate_audio": true
}'

将静态图片动化为视频：

bash

belt app run bytedance/seedance-2-0 --input '{
  "image": "https://your-image.jpg",
  "prompt": "gentle camera movement, leaves rustling in the wind",
  "generate_audio": true
}'

Image-to-Video with Start and End Frames

带起始和结束帧的图片转视频

bash

belt app run bytedance/seedance-2-0 --input '{
  "image": "https://start-frame.jpg",
  "end_image": "https://end-frame.jpg",
  "prompt": "smooth transition between scenes",
  "generate_audio": true
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "image": "https://start-frame.jpg",
  "end_image": "https://end-frame.jpg",
  "prompt": "smooth transition between scenes",
  "generate_audio": true
}'

Multi-Image Reference

多图片参考

Use multiple reference images to guide character appearance, outfits, and scene elements:

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "The girl from Image 1 wearing the outfit from Image 2 walks through the cafe from Image 3",
  "reference_images": [
    "https://character-portrait.jpg",
    "https://outfit-reference.jpg",
    "https://cafe-scene.jpg"
  ],
  "generate_audio": true,
  "duration": 8
}'

使用多张参考图片引导角色外观、服装和场景元素：

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "The girl from Image 1 wearing the outfit from Image 2 walks through the cafe from Image 3",
  "reference_images": [
    "https://character-portrait.jpg",
    "https://outfit-reference.jpg",
    "https://cafe-scene.jpg"
  ],
  "generate_audio": true,
  "duration": 8
}'

Video Editing (Replace Elements)

视频编辑（替换元素）

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "Replace the perfume in Video 1 with the face cream from Image 1, preserving all original motions and camera work",
  "reference_images": ["https://face-cream.jpg"],
  "reference_videos": ["https://original-video.mp4"],
  "generate_audio": true
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "Replace the perfume in Video 1 with the face cream from Image 1, preserving all original motions and camera work",
  "reference_images": ["https://face-cream.jpg"],
  "reference_videos": ["https://original-video.mp4"],
  "generate_audio": true
}'

Video Extension (Stitch Clips)

视频扩展（拼接片段）

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "Video 1 transitions smoothly into Video 2, then the camera enters the painting from Video 3",
  "reference_videos": [
    "https://clip1.mp4",
    "https://clip2.mp4",
    "https://clip3.mp4"
  ],
  "generate_audio": true,
  "duration": 8
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "Video 1 transitions smoothly into Video 2, then the camera enters the painting from Video 3",
  "reference_videos": [
    "https://clip1.mp4",
    "https://clip2.mp4",
    "https://clip3.mp4"
  ],
  "generate_audio": true,
  "duration": 8
}'

Reference with Audio

带音频参考的生成

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "The musician from Image 1 performs the song from Audio 1, voice style referenced from Audio 1",
  "reference_images": ["https://musician.jpg"],
  "reference_audios": ["https://music.mp3"],
  "generate_audio": true
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "The musician from Image 1 performs the song from Audio 1, voice style referenced from Audio 1",
  "reference_images": ["https://musician.jpg"],
  "reference_audios": ["https://music.mp3"],
  "generate_audio": true
}'

Studio Mode (Portrait Consistency)

Studio模式（人像一致性）

Studio variants upload images to BytePlus's private asset library for enhanced face/character consistency:

bash

belt app run bytedance/seedance-2-0-studio --input '{
  "prompt": "The person in Image 1 smiles at the camera, golden hour lighting, cinematic",
  "reference_images": ["https://portrait.jpg"],
  "safety_identifier": "user-abc123",
  "generate_audio": true
}'

Studio变体可将图片上传至BytePlus私有资产库，增强人脸/角色一致性：

bash

belt app run bytedance/seedance-2-0-studio --input '{
  "prompt": "The person in Image 1 smiles at the camera, golden hour lighting, cinematic",
  "reference_images": ["https://portrait.jpg"],
  "safety_identifier": "user-abc123",
  "generate_audio": true
}'

Product Ad with Multiple References

多参考素材的产品广告

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "First-person POV product ad. Opening frame is Image 1, hand picks up the product. Camera pushes into close-up showing details. Use the camera movement style from Video 1. Background music from Audio 1.",
  "reference_images": ["https://product-hero.jpg", "https://product-detail.jpg"],
  "reference_videos": ["https://camera-style.mp4"],
  "reference_audios": ["https://bgm.mp3"],
  "generate_audio": true,
  "ratio": "9:16",
  "duration": 11
}'

bash

belt app run bytedance/seedance-2-0 --input '{
  "prompt": "First-person POV product ad. Opening frame is Image 1, hand picks up the product. Camera pushes into close-up showing details. Use the camera movement style from Video 1. Background music from Audio 1.",
  "reference_images": ["https://product-hero.jpg", "https://product-detail.jpg"],
  "reference_videos": ["https://camera-style.mp4"],
  "reference_audios": ["https://bgm.mp3"],
  "generate_audio": true,
  "ratio": "9:16",
  "duration": 11
}'

Prompt Guide

提示词指南

Reference assets in your prompt using type + index:

Image 1

Image 2

Video 1

Audio 1

. The index is the position within that type in the arrays you provide. Do NOT use asset IDs in prompts.

Multimodal reference formula:

Image reference: "Refer to the [subject] from [Image N] to generate [scene], keeping [subject] consistent"
Video reference: "Refer to the [camera movement/action] from [Video N]"
Audio reference: "[Character] says: [dialogue], voice style referenced from [Audio N]"

Video editing formula:

Add: "At [timing] of [Video N], add [element]"
Remove: "Remove [element] from [Video N], keeping the rest unchanged"
Modify: "Replace [element] in [Video N] with [new element]"

Video extension formula:

Forward: "Generate content after [Video N]: [description]"
Backward: "Extend the opening of [Video N]: [description]"
Stitch: "[Video 1] + [transition] + followed by [Video 2]"

在提示词中使用类型+索引引用素材：

Image 1

、

Image 2

、

Video 1

、

Audio 1

。索引对应你提供的数组中该类型素材的位置。请勿在提示词中使用素材ID。

多模态参考公式：

图片参考：“参考[Image N]中的[主体]来生成[场景]，保持[主体]一致性”
视频参考：“参考[Video N]中的[镜头运动/动作]”
音频参考：“[角色]说：[台词]，声音风格参考[Audio N]”

视频编辑公式：

添加：“在[Video N]的[时间点]添加[元素]”
删除：“从[Video N]中移除[元素]，其余内容保持不变”
修改：“将[Video N]中的[元素]替换为[新元素]”

视频扩展公式：

向前扩展：“在[Video N]之后生成内容：[描述]”
向后扩展：“扩展[Video N]的开头部分：[描述]”
拼接：“[Video 1] + [过渡效果] + 紧接着[Video 2]”

Parameters

参数说明

Parameter	Type	Default	Description
`prompt`	string	required	Text description of the video
`generate_audio`	boolean	true	Generate synchronized audio
`duration`	integer	5	Duration in seconds (4-15), or -1 for auto
`ratio`	enum	adaptive	21:9, 16:9, 4:3, 1:1, 3:4, 9:16, or adaptive
`resolution`	enum	720p	480p, 720p, 1080p (Fast: 480p, 720p only)
`seed`	integer	-1	Seed for reproducibility (-1 for random)
`watermark`	boolean	false	Add watermark to output
`safety_identifier`	string	-	Unique end-user identifier for safety policy (max 64 chars, hash of user ID recommended)
`image`	file	-	First-frame image (mutually exclusive with reference inputs)
`end_image`	file	-	Last-frame image (requires `image` )
`reference_images`	file[]	-	Reference images, up to 9 (mutually exclusive with image/end_image)
`reference_videos`	file[]	-	Reference videos, up to 3. Max 15s each, total max 15s. mp4/mov
`reference_audios`	file[]	-	Reference audios, up to 3. Max 15s each, total max 15s. wav/mp3. Requires at least one image or video

参数	类型	默认值	描述
`prompt`	string	必填	视频的文本描述
`generate_audio`	boolean	true	生成同步音频
`duration`	integer	5	视频时长（单位：秒，4-15），设为-1则自动适配
`ratio`	enum	adaptive	宽高比：21:9、16:9、4:3、1:1、3:4、9:16或自适应
`resolution`	enum	720p	分辨率：480p、720p、1080p（Fast版本仅支持480p、720p）
`seed`	integer	-1	随机种子（用于复现结果，设为-1则随机）
`watermark`	boolean	false	为输出视频添加水印
`safety_identifier`	string	-	用于安全策略的唯一终端用户标识（最多64字符，推荐使用用户ID的哈希值）
`image`	file	-	首帧图片（与参考素材输入互斥）
`end_image`	file	-	末帧图片（需搭配 `image` 使用）
`reference_images`	file[]	-	参考图片，最多9张（与image/end_image输入互斥）
`reference_videos`	file[]	-	参考视频，最多3个。单个视频最长15秒，总时长不超过15秒。格式为mp4/mov
`reference_audios`	file[]	-	参考音频，最多3个。单个音频最长15秒，总时长不超过15秒。格式为wav/mp3。需至少搭配一张图片或一个视频使用

Pricing

定价

Model	Pricing
Seedance 2.0	$4.30-$7.70/M tokens (varies by resolution and input type)
Seedance 2.0 Fast	$3.30-$5.60/M tokens

Token formula:

(width x height x fps x duration) / 1024

模型	定价
Seedance 2.0	$4.30-$7.70/百万token（根据分辨率和输入类型有所不同）
Seedance 2.0 Fast	$3.30-$5.60/百万token

Token计算公式：

(宽度 × 高度 × 帧率 × 时长) / 1024

Search Seedance Apps

搜索Seedance应用

bash

belt app store search "seedance"

bash

belt app store search "seedance"

Related Skills

Full platform skill (all 250+ apps)

全平台技能（包含250+应用）

npx skills add inference-sh/skills@infsh-cli

All video generation models

所有视频生成模型

npx skills add inference-sh/skills@ai-video-generation

Google Veo

npx skills add inference-sh/skills@google-veo

Image generation (for image-to-video)

图片生成（用于图片转视频）

npx skills add inference-sh/skills@ai-image-generation

AI avatars & lipsync

AI虚拟形象与唇形同步

npx skills add inference-sh/skills@ai-avatar-video


Browse all video apps: `belt app store --category video`

npx skills add inference-sh/skills@ai-avatar-video


浏览所有视频应用：`belt app store --category video`

Documentation

文档

Running Apps - How to run apps via CLI
Streaming Results - Real-time progress updates
Content Pipeline Example - Building media workflows

运行应用 - 如何通过CLI运行应用
流式结果 - 实时进度更新
内容流水线示例 - 构建媒体工作流

seedance

Original

Translation

Seedance 2.0 Video Generation

Seedance 2.0 视频生成

Quick Start

快速开始

Models

模型

Modes

生成模式

Examples

示例

Text-to-Video with Audio

带音频的文本转视频

Fast Mode (Cheaper)

快速模式（成本更低）

Image-to-Video

图片转视频

Image-to-Video with Start and End Frames

带起始和结束帧的图片转视频

Multi-Image Reference

多图片参考

Video Editing (Replace Elements)

视频编辑（替换元素）

Video Extension (Stitch Clips)

视频扩展（拼接片段）

Reference with Audio

带音频参考的生成

Studio Mode (Portrait Consistency)

Studio模式（人像一致性）

Product Ad with Multiple References

多参考素材的产品广告

Prompt Guide

提示词指南

Parameters

参数说明

Pricing

定价

Search Seedance Apps

搜索Seedance应用

Related Skills

相关技能

Full platform skill (all 250+ apps)

全平台技能（包含250+应用）

All video generation models

所有视频生成模型

Google Veo

Google Veo

Image generation (for image-to-video)

图片生成（用于图片转视频）

AI avatars & lipsync

AI虚拟形象与唇形同步

Documentation

文档