Seedance 2.0 Video

Generate stunning videos with text prompts and reference images using Seedance 2.0 model with Pro and Fast modes

Tool Overview

The Seedance 2.0 Video tool generates high-quality video content using ByteDance's Seedance 2.0 model. It supports text prompts, reference images (up to 6), flexible video duration (4-15 seconds), multiple aspect ratios, three resolution options (480P / 720P / 1080P), and two speed modes (Pro / Fast).

Tool Identifier

seedance20-video-api

Parameters

Required Parameters

At least one of prompt or media_urls must be provided.

prompt

Type: string
Description: Text description of the video content to guide AI video generation
Example: "A cat walking gracefully on a sandy beach at sunset"

media_urls

Type: string[]
Description: Reference media URLs (images, videos, or audio) to guide video generation
Limits:
- Images: up to 6
- Videos: up to 3 (total duration must not exceed 15 seconds, each video must be at least 2 seconds)
- Audio: up to 2
Example: ["https://example.com/image1.jpg", "https://example.com/video1.mp4", "https://example.com/audio1.mp3"]

Optional Parameters

duration

Type: number (optional)
Default: 5
Range: 4 - 15 (seconds)
Note: Values outside range will be rejected. String values are automatically parsed to numbers

aspect_ratio

Type: string (optional)
Default: "16:9"
Supported Values:
- "16:9" - Landscape format
- "9:16" - Portrait format
- "1:1" - Square format
- "4:3" - Classic format
- "3:4" - Portrait classic format
Note: Invalid values default to "16:9"

mode

Type: string (optional)
Default: "pro"
Supported Values:
- "pro" - Higher quality
- "fast" - Faster generation

resolution

Type: string (optional)
Default: "720p"
Supported Values:
- "480p" - Lower resolution, cheapest option
- "720p" - Standard resolution (default)
- "1080p" - High resolution, highest quality
Note: Invalid values default to "720p"

Pricing

Credits are calculated as duration × cost per second. Cost per second depends on resolution and mode:

480P: Pro 140 credits/s, Fast 90 credits/s
720P: Pro 250 credits/s, Fast 162 credits/s
1080P: Pro 625 credits/s, Fast 405 credits/s
Examples (720P):
- 5s Pro = 1,250 credits | 5s Fast = 810 credits
- 10s Pro = 2,500 credits | 10s Fast = 1,620 credits
- 15s Pro = 3,750 credits | 15s Fast = 2,430 credits
Examples (1080P):
- 5s Pro = 3,125 credits | 5s Fast = 2,025 credits
- 10s Pro = 6,250 credits | 10s Fast = 4,050 credits
Examples (480P):
- 5s Pro = 700 credits | 5s Fast = 450 credits
- 10s Pro = 1,400 credits | 10s Fast = 900 credits

Request Examples

Text-to-Video (Pro Mode, 5 seconds, 1080P)

curl -X POST https://sjinn.ai/api/un-api/create_tool_task \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tool_type": "seedance20-video-api",
    "input": {
      "prompt": "A cat walking gracefully on a sandy beach at sunset, cinematic lighting",
      "duration": 5,
      "aspect_ratio": "16:9",
      "mode": "pro",
      "resolution": "1080p"
    }
  }'

Media Reference + Text (Fast Mode, 8 seconds, 480P)

curl -X POST https://sjinn.ai/api/un-api/create_tool_task \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tool_type": "seedance20-video-api",
    "input": {
      "media_urls": ["https://example.com/reference.jpg"],
      "prompt": "The character starts dancing with smooth movements",
      "duration": 8,
      "aspect_ratio": "9:16",
      "mode": "fast",
      "resolution": "480p"
    }
  }'

Using JavaScript

const response = await fetch('https://sjinn.ai/api/un-api/create_tool_task', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    tool_type: 'seedance20-video-api',
    input: {
      prompt: 'A cat walking gracefully on a sandy beach at sunset',
      duration: 5,
      aspect_ratio: '16:9',
      mode: 'pro',
      resolution: '720p',
    },
  }),
});

const result = await response.json();
console.log('Task ID:', result.data.task_id);

Using Python

import requests

url = 'https://sjinn.ai/api/un-api/create_tool_task'
headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
}
data = {
    'tool_type': 'seedance20-video-api',
    'input': {
        'prompt': 'A cat walking gracefully on a sandy beach at sunset',
        'duration': 5,
        'aspect_ratio': '16:9',
        'mode': 'pro',
        'resolution': '720p'
    }
}

response = requests.post(url, json=data, headers=headers)
result = response.json()
print('Task ID:', result['data']['task_id'])

Response Examples

Success Response

{
  "success": true,
  "errorMsg": "",
  "error_code": 0,
  "data": {
    "task_id": "550e8400-e29b-41d4-a716-446655440000"
  }
}

Error Response

{
  "success": false,
  "errorMsg": "Insufficient balance",
  "error_code": 100
}

Best Practices

Mode Selection: Use fast mode for quick prototyping, switch to pro for final high-quality output
Duration Selection: Start with shorter durations (4-5s) for testing, then increase. Cost scales linearly with duration
Reference Media: Provide reference images, videos, or audio for more consistent and guided video generation
Prompt + Media: Combine text prompts with reference media for the best results — the prompt guides the action while media defines the visual/audio style
Generation Time: Video generation typically takes 2-8 minutes depending on duration and mode

Seedance 2.0 Video