Seedance 1.0 Pro Fast

ByteDance's Seedance 1.0 Pro Fast. Faster, lower-cost text-to-video and image-to-video up to 1080p, 2-12 seconds.

POST/v1/media/queue

from about $0.02/second

Overview

ByteDance's Seedance 1.0 Pro Fast — a faster, lower-priced Seedance 1.0 Pro for text-to-video and first-frame image-to-video at 480p, 720p or 1080p, without audio. Async operation — submit a job, poll for completion.

Property	Value
Model ID	`bytedance/seedance-1-0-pro-fast`
Provider	ByteDance
Resolutions	480p, 720p, 1080p
Alias	`seedance-1-0-pro-fast`, `seedance-1-pro-fast`
Aspect Ratios	16:9, 4:3, 1:1, 3:4, 9:16, 21:9
Duration	2–12 seconds
Image-to-Video	First frame
Audio Generation	Not supported (silent video)
Billing	Dynamic (actual cost per job)
Pricing	from about $0.02/second (480p); about $0.20 per 5s clip at 720p

Usage

All media models use the async job queue. Submit a job, then poll for the result.

Step 1: Submit Job

Text-to-Video

const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    model: 'bytedance/seedance-1-0-pro-fast',
    prompt: 'A cinematic drone shot over a rugged coastline at golden hour',
    options: {
      aspectRatio: '16:9',
      resolution: '720p',
      duration: '5',
    },
  }),
});
const { data } = await res.json();
// data.jobId — use this to poll for results

curl -X POST https://api.yepapi.com/v1/media/queue \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "bytedance/seedance-1-0-pro-fast", "prompt": "A cinematic drone shot over a rugged coastline", "options": {"aspectRatio": "16:9", "resolution": "720p", "duration": "5"}}'

Image-to-Video

Pass a reference image via imageData to use it as the first frame of the video.

const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    model: 'bytedance/seedance-1-0-pro-fast',
    prompt: 'Animate this scene — clouds drifting, light changing',
    options: {
      aspectRatio: '16:9',
      resolution: '720p',
      duration: '5',
    },
    imageData: {
      mimeType: 'image/jpeg',
      base64: '...', // Base64-encoded image
    },
  }),
});

Step 2: Poll for Result

const status = await fetch(`https://api.yepapi.com/v1/media/status/${data.jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status — "pending" | "processing" | "completed" | "failed"
// job.result.video — { mimeType, base64 } when completed

curl https://api.yepapi.com/v1/media/status/JOB_ID \
  -H "x-api-key: YOUR_API_KEY"

Request Body

Parameter	Type	Required	Description	Default
`model`	`string`	Yes	`bytedance/seedance-1-0-pro-fast` or aliases `seedance-1-0-pro-fast`, `seedance-1-pro-fast`	—
`prompt`	`string`	Yes	Text description of the video to generate	—
`options.aspectRatio`	`string`	No	One of: 16:9, 4:3, 1:1, 3:4, 9:16, 21:9	`16:9`
`options.resolution`	`string`	No	`480p`, `720p`, `1080p`	`1080p`
`options.duration`	`string`	No	`2` to `12` (seconds)	`5`
`imageData.mimeType`	`string`	No	MIME type of input image (image/png, image/jpeg, image/webp)	—
`imageData.base64`	`string`	No	Base64-encoded input image, used as the first frame	—

Pricing

Resolution	Cost/sec	5-second clip
480p	~$0.02	~$0.10
720p	~$0.04	~$0.20
1080p (default)	~$0.10	~$0.49

Cost scales with resolution and length. Billing is dynamic — each job is billed from the actual cost of the finished video, so shorter or lower-resolution jobs cost less.

Info

If you omit options.resolution, the video renders at 1080p. Video jobs can take several minutes to complete. Results retained for 1 hour.

Under the Hood

Seedance 1.0 Pro Fast

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