Live capabilities

These capabilities come from the current model config and backend route. Unreleased APIs are not listed.

Best

Best-in-class human motion and dance generation

Backed by ByteDance's research

Audio generation support

Fixed lens mode for stable camera

Request format

Clients call same-origin API routes; the server BFF forwards to the matching Worker.

MethodEndpointCreditsPurpose

POST/api/v1/videos/generations28 credits

ByteDance's Seedance 1.5 Pro — exceptional dance and human motion video generation with text and image input.

Parameters

promptstring

Text description of the video

Required

imagestring

Reference image URL for image-to-video

Optional

aspect_ratiostring

Aspect ratio: 16:9, 9:16, 4:3, 3:4, 1:1

Optional · Default 16:9

resolutionstring

Output resolution: "480p" or "720p"

Optional · Default 720p

durationstring

Video duration: "4", "8", or "12" seconds

Optional · Default 8

generateAudioboolean

Enable audio generation (doubles credits)

Optional · Default false

fixedLensboolean

Lock camera for stable shot

Optional · Default false

Example request

{
  "endpoint": "/api/v1/videos/generations",
  "headers": {
    "Authorization": "Bearer <API_KEY>",
    "Content-Type": "application/json"
  },
  "body": {
    "model": "seedance-1-5-pro",
    "prompt": "A dancer performing contemporary ballet in a spotlight, slow motion",
    "resolution": "720p",
    "duration": "8",
    "generateAudio": false
  }
}

Task status route

After creating image, video, audio, or tool tasks, poll the real task endpoint for results.

GET/api/v1/tasks/{task_id}Check generation task status and result.

Pricing

8–84 credits per video (~$0.08–$0.84); default is 28 credits

Base cost$0.28

Credits28

BillingSuccessful requests

Use cases

These workflows are supported by the current model and backend node.

01

Generate dance and choreography videos from text

02

Create motion-rich video clips for entertainment apps

03

Animate characters with natural human motion

04

Produce social media dance content at scale

FAQ

How much does the Seedance API cost?

Credits depend on resolution, duration and audio. 480p 4s no-audio costs 8 credits, default 720p 8s no-audio costs 28 credits, and 720p 12s with-audio costs 84 credits.

What makes Seedance different from other video models?

Seedance specializes in human motion and dance, producing more natural body movements than general-purpose video models.

Does Seedance support audio?

Yes. Set generateAudio to true to generate audio alongside the video. This doubles the credit cost.

seedance-1-5-pro API