seedance

★ 582

by qu-skills · part of inference-sh/skills

Generate videos with ByteDance Seedance 2.0 via inference.sh CLI. Unified model for text-to-video, image-to-video, and reference-to-video with synchronized audio, up to 1080p, 4-15s duration. Pro and Fast variants. Studio variants with private asset library for portrait consistency. Use for: social media videos, music videos, product demos, animated content, AI video with sound. Triggers: seedance, seedance 2, bytedance video, seedance t2v, seedance i2v, seedance r2v, video with audio,...

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🧩 One of 7 skills in the inference-sh/skills package — works on its own, and pairs well with its siblings.

Inspect the full instructions your agent will receiveExpand

This is the exact playbook injected into your agent when the skill activates — shown here so you can audit it before installing. You don't need to read it to use the skill.

name: seedance description: "Generate videos with ByteDance Seedance 2.0 via inference.sh CLI. Unified model for text-to-video, image-to-video, and reference-to-video with synchronized audio, up to 1080p, 4-15s duration. Pro and Fast variants. Studio variants with private asset library for portrait consistency. Use for: social media videos, music videos, product demos, animated content, AI video with sound. Triggers: seedance, seedance 2, bytedance video, seedance t2v, seedance i2v, seedance r2v, video with audio, seedance 2.0, bytedance seedance, seedance studio" allowed-tools: Bash(belt *)

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

Seedance 2.0 Video Generation

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

Models

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.

Modes

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

Examples

Text-to-Video with Audio

Copy & paste — that's it

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)

Copy & paste — that's it

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

Animate a still image into a video:

Copy & paste — that's it

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

Copy & paste — that's it

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

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

Copy & paste — that's it

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)

Copy & paste — that's it

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)

Copy & paste — that's it

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

Copy & paste — that's it

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

Copy & paste — that's it

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

Copy & paste — that's it

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

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]"

Parameters

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

Pricing

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

Search Seedance Apps

Copy & paste — that's it

belt app store search "seedance"

Related Skills

Copy & paste — that's it

# 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-video

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

Documentation

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

Copy & paste — that's it

npx skills add https://github.com/inference-sh/skills --skill seedance

Run this in your project — your agent picks the skill up automatically.

Quick Start

Requires inference.sh CLI (belt). Install instructions

Copy & paste — that's it

belt login

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