# Seedance 1 Pro Fast - Core.Today AI API

> ByteDance's cinematic video generation model with fast generation speed and professional output quality.

- **Provider**: ByteDance
- **Model ID**: bytedance/seedance-1-pro-fast
- **Category**: Video Generation
- **Credits**: 290 per video
- **Speed**: Fast
- **Quality**: High

## Features
- Fast generation speed
- Professional output quality
- Cinematic video generation
- Image-to-video support
- 5 or 10 second duration

## Use Cases
- Fast professional video creation
- Social media content at scale
- Quick marketing clips
- Rapid creative prototyping
- Cost-effective video production

## API Endpoint

Base URL: https://api.core.today/v1
Create Prediction: POST /predictions
Get Status: GET /predictions/{job_id}

## Authentication
Header: X-API-Key: YOUR_API_KEY

## Input Parameters

### Required
- **prompt**: string - Text description of the video to generate

### Optional
- **fps**: integer (default: 24) - Frame rate (frames per second)
  Options: 24
- **seed**: integer - Random seed for reproducibility
- **image**: string - Input image for image-to-video generation
- **duration**: integer (default: 5) - Video duration in seconds (5 or 10)
- **resolution**: string (default: 1080p) - Video resolution
  Options: 480p, 720p, 1080p
- **aspect_ratio**: string (default: 16:9) - Output aspect ratio
  Options: 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, 9:21
- **camera_fixed**: boolean (default: false) - Whether to fix camera position

## Examples

### Quick Cinematic Shot
Fast cinematic video generation
```json
{
  "model": "bytedance/seedance-1-pro-fast",
  "input": {
    "prompt": "A sports car drifting around a mountain curve, dust and gravel flying, dramatic low angle, cinematic motion blur, golden hour",
    "duration": "5",
    "aspect_ratio": "16:9"
  }
}
```

### Social Media Vertical
Vertical video for social media
```json
{
  "model": "bytedance/seedance-1-pro-fast",
  "input": {
    "prompt": "Fresh strawberry falling into a glass of milk in slow motion, splash effect, clean white background, product photography style",
    "duration": "5",
    "aspect_ratio": "9:16"
  }
}
```

## Response Format
```json
{
  "job_id": "abc123",
  "status": "pending | processing | completed | failed",
  "result": "URL or data (when completed)"
}
```

## Usage Flow
1. POST /predictions with model and input -> receive job_id
2. GET /predictions/{job_id} -> poll until status is completed or failed
3. Result contains output URL(s)

## Tips
- One of the most cost-effective video models at 190 credits per video
- Fast speed makes it ideal for batch generation and rapid iteration
- Use seed parameter for reproducible results across generations
- Great balance of speed, quality, and cost for everyday video needs