Seedance API (1.0 Pro Fast)

Accelerate your creative workflow with the Seedance API. Deliver cinematic motion and 1080p quality at 3x the speed of standard Pro models. Perfect for developers building scalable text-to-video and image-to-video applications.

Prompt

A cat wandering through the city and then going back to sleep

Parameters

duration

quality

1080p

aspect_ratio

16:9

Estimated Cost

10 Credits/s

Total = Base Price × Duration × Quality

Sample Result

No sample available

Prompt

0 (suggested: 2,000)

Input Images

Upload 1 image (max 10MB)

Click to upload or drag and drop

Supported formats: JPG, JPEG, PNG, WEBP
Maximum file size: 10MB; Maximum files: 1

Duration5s

2s12s

Quality

Aspect Ratio

Click Generate to see preview

History

Max 20 items

0 running · 0 completed

Your generation history will appear here

Pricing

Starting from

$0.010

10 Credits

per second

Guaranteed

99.9% Uptime

Seedance API: High-Speed, Cinematic Video Integration

Deploy production-ready AI video generation. The Seedance API supports up to 1080p resolution at 24 fps, advanced prompt adherence, and stable multi-shot camera controls for automated ad and content creation.

What can you build with the Seedance API?

Automated Story Generation

Use the Seedance API to programmatically generate 5–10s cinematic sequences. Control camera movement and scene transitions via code for consistent storytelling.

View Documentation

Dynamic Image-to-Video Assets

Transform static images into engaging video clips using the I2V endpoint. Maintain character identity and visual style from the first frame automatically.

View Documentation

High-Volume Ad Variation

Leverage the Seedance API for rapid A/B testing. Generate multiple creative variants in parallel without infrastructure bottlenecks.

View Documentation

Why developers choose the Seedance API

Designed for engineering teams requiring reliable 1080p output, low latency, and seamless integration into existing content pipelines.

Efficiency Meets Quality

The Seedance API balances speed and fidelity, allowing you to generate 2–12s HD clips in seconds. It bridges the gap between lightweight draft models and slow, expensive pro models.

Native Aspect Ratio Support

Define output dimensions programmatically. The API supports 16:9, 1:1, 9:16, and custom ratios, ensuring content is platform-ready for TikTok, Reels, or YouTube without post-processing.

Scalable Infrastructure

Built on EvoLink's robust architecture, the Seedance API offers operational headroom with ~600 RPM per account, ensuring your batch jobs run smoothly without throttling.

How to integrate the Seedance API

Go from zero to generated video in three simple API calls using the EvoLink unified SDK.

Step 1 — Configure API Endpoint

Select the text-to-video or image-to-video endpoint. Define your video duration (2–12s) and aspect ratio parameters in the request header.

Step 2 — Send Generation Payload

Submit your prompt with specific camera instructions. For I2V, pass your reference image URL to the Seedance API to ensure visual continuity.

Step 3 — Retrieve & Scale

Receive the generated 1080p video URL via webhook or polling. Iterate programmatically to refine motion or scale up production batches.

Open API Playground

Seedance API Capabilities

Technical specifications for enterprise video integration

Flexibility

Dual Mode API

Unified endpoints for both Text-to-Video and Image-to-Video generation.

Quality

HD Output Standard

Delivers 1080p resolution at 24 fps for professional-grade smoothness.

Control

Programmatic Camera Control

Control camera moves (pan/zoom) via API parameters for precise direction.

Speed

Accelerated Inference

Seedance API (Fast) renders ~3x quicker than the standard Pro model.

Formats

Multi-Format Export

Generate native 9:16, 16:9, or 1:1 videos directly from the model.

Scalability

Enterprise Throughput

Support for ~600 RPM and ~10 concurrent tasks specifically for API users.

Seedance API vs. Other Video Models

Choosing the right API for your application

Model	Duration	Resolution	Price	Strength
Seedance API (1.0 Pro Fast)	2–12s	Up to 1080p	~60% lower cost; Token-based	Balanced speed & quality, API camera control, high concurrency for apps.
Seedance 1.0 Pro API	2–12s	Up to 1080p	Standard Enterprise Rate	Maximum visual fidelity for hero assets; slower inference time.
VEO 3.1 Fast API	4/6/8s	720p/1080p	~$0.15/sec (EvoLink)	Good for specific short-form hooks; slightly different motion style.

Seedance API Frequently Asked Questions

Everything you need to know about the product and billing.

The Seedance API (Pro Fast edition) is optimized for developers needing speed and efficiency. It retains 1080p quality and camera controls but utilizes an optimized inference engine to render videos 3x faster and at ~60% lower cost than the standard Seedance Pro API.

Authentication is handled via the EvoLink unified gateway. You will need to pass your unique API Key in the header of each HTTP request. Refer to the developer documentation for specific header formats.

The API accepts JSON payloads containing text prompts for T2V, and image URLs combined with optional text prompts for I2V (Image-to-Video). You can also include specific parameters for camera movement and aspect ratios.

Yes, to ensure stability, the default quota is approximately 600 Requests Per Minute (RPM) with a concurrency limit of 10 tasks per model version. Enterprise plans can request higher limits.

Currently, the Seedance API focuses exclusively on high-quality visual generation and outputs silent video files. Audio generation should be handled by a separate TTS or music generation API service.

While 'Pro Fast' is significantly quicker than standard models, video generation is compute-intensive. It is best suited for near-real-time or asynchronous workflows rather than instant real-time interaction.

API Reference

Select endpoint

Authentication

All APIs require Bearer Token authentication.

Header

Authorization: 
Bearer YOUR_API_KEY

Get API Key

POST

/v1/videos/generations

Create Video

Seedance 1.0 Pro Fast (doubao-seedance-1.0-pro-fast) model supports multiple generation modes including text-to-video and image-to-video.

Asynchronous processing mode, use the returned task ID to .

Generated video links are valid for 24 hours, please save them promptly.

Request Parameters

modelstringRequiredDefault: doubao-seedance-1.0-pro-fast

Video generation model name.

Exampledoubao-seedance-1.0-pro-fast

promptstringRequired

Prompt describing what kind of video to generate.

Notes

Limited to 2000 tokens

ExampleA cat playing piano

durationintegerOptionalDefault: 5

Specifies the duration of the generated video (in seconds).

Value	Description
2-12	Any integer value between 2 and 12 seconds

Notes

Billing is based on duration; longer durations result in higher costs

Example5

qualitystringOptionalDefault: 1080p

Video resolution.

Value	Description
480p	Lower resolution, lower pricing
720p	Standard definition, standard pricing
1080p	High definition, higher pricing (default)

Example1080p

aspect_ratiostringOptionalDefault: 16:9

Video aspect ratio.

Value	Description
16:9	Landscape video
9:16	Portrait video
1:1	Square video
4:3	Standard video
3:4	Portrait standard
21:9	Ultra-wide video

Notes

Image-to-video mode also supports 'keep_ratio' and 'adaptive'

Example'16:9'

image_urlsarrayOptional

Reference image URL list for image-to-video feature.

Notes

1 image per request for image-to-video
Max size: 10MB per image
Formats: .jpg, .jpeg, .png, .webp
URLs must be directly viewable by the server

Examplehttp://example.com/image1.jpg

callback_urlstringOptional

HTTPS callback address after task completion.

Notes

Triggered on completion, failure, or cancellation
Sent after billing confirmation
HTTPS only, no internal IPs
Max length: 2048 chars
Timeout: 10s, Max 3 retries

Examplehttps://your-domain.com/webhooks/video-task-completed

Request Example

{
  "model": "doubao-seedance-1.0-pro-fast",
  "prompt": "A cat playing piano",
  "duration": 5,
  "quality": "1080p",
  "aspect_ratio": "16:9"
}

Response Example

{
  "created": 1761313744,
  "id": "task-unified-1761313744-vux2jw0k",
  "model": "doubao-seedance-1.0-pro-fast",
  "object": "video.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 165,
    "video_duration": 8
  },
  "type": "video",
  "usage": {
    "billing_rule": "per_call",
    "credits_reserved": 8,
    "user_group": "default"
  }
}