Seedance 2.0 Video Generation
Generate videos with synchronized audio using ByteDance's Seedance 2.0 models via inference.sh CLI.
Quick Start
Requires inference.sh CLI (belt). Install instructionsbelt login
belt app run falai/seedance-2-t2v --input '{
"prompt": "a jazz band performing in a dimly lit club",
"generate_audio": true
}'Seedance 2.0 Models
| Model | App ID | Best For |
|---|---|---|
| Seedance 2 T2V | falai/seedance-2-t2v | Text-to-video with audio |
| Seedance 2 I2V | falai/seedance-2-i2v | Animate images with audio |
| Seedance 2 R2V | falai/seedance-2-r2v | Reference images/videos/audio to video |
All models support quality and fast modes, 480p/720p resolution, and synchronized audio generation.
Examples
Text-to-Video with Audio
belt app run falai/seedance-2-t2v --input '{
"prompt": "ocean waves crashing on rocks during a storm, dramatic cinematic shot",
"generate_audio": true,
"duration": 10,
"aspect_ratio": "16:9"
}'Fast Mode (Cheaper)
belt app run falai/seedance-2-t2v --input '{
"prompt": "a butterfly landing on a flower in slow motion",
"mode": "fast",
"generate_audio": true
}'Image-to-Video
Animate a still image into a video:
belt app run falai/seedance-2-i2v --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
belt app run falai/seedance-2-i2v --input '{
"image": "https://start-frame.jpg",
"end_image": "https://end-frame.jpg",
"prompt": "smooth transition between scenes",
"generate_audio": true
}'Reference-to-Video
Use reference images, videos, or audio in your prompt with @Image1, @Video1, @Audio1 placeholders:
belt app run falai/seedance-2-r2v --input '{
"prompt": "A person who looks like @Image1 is walking through a garden",
"images": ["https://portrait.jpg"],
"generate_audio": true
}'Multi-Reference
belt app run falai/seedance-2-r2v --input '{
"prompt": "@Image1 and @Image2 are having a conversation at a cafe",
"images": ["https://person1.jpg", "https://person2.jpg"],
"generate_audio": true
}'Reference with Audio
belt app run falai/seedance-2-r2v --input '{
"prompt": "A musician who looks like @Image1 is performing @Audio1",
"images": ["https://musician.jpg"],
"audios": ["https://music.mp3"],
"generate_audio": true
}'Pricing
| Mode | 720p | 480p |
|---|---|---|
| Quality | ~$0.30/sec | ~$0.13/sec |
| Fast | ~$0.24/sec | ~$0.11/sec |
Parameters (T2V)
| Parameter | Type | Default | Description |
|---|---|---|---|
prompt | string | required | Text description of the video |
generate_audio | boolean | false | Generate synchronized audio |
duration | enum | - | Duration in seconds (4–10) |
aspect_ratio | enum | - | 16:9, 9:16, 1:1, 4:3, 3:4 |
resolution | enum | - | 480p or 720p |
mode | enum | quality | quality or fast |
seed | integer | random | Reproducible generation |
Parameters (I2V)
Same as T2V plus:
| Parameter | Type | Description |
|---|---|---|
image | file | Starting frame image (required) |
end_image | file | Optional ending frame |
Parameters (R2V)
Same as T2V plus:
| Parameter | Type | Description |
|---|---|---|
images | array | Reference images (@Image1, @Image2,...) |
videos | array | Reference videos (@Video1, @Video2,...) |
audios | array | Reference audio (@Audio1, @Audio2,...) |
Search Seedance Apps
belt app list --search "seedance"Related Skills
# Full platform skill (all 250+ apps)
npx skills add inference-sh/skills@infsh-cli
# All video generation models
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)
npx skills add inference-sh/skills@ai-image-generation
# AI avatars & lipsync
npx skills add inference-sh/skills@ai-avatar-videoBrowse all video apps: belt app list --category video
Documentation
- Running Apps - How to run apps via CLI
- Streaming Results - Real-time progress updates
- Content Pipeline Example - Building media workflows