Seedance 2.0 Video

Generate stunning videos with text prompts and reference images using Seedance 2.0 model with Pro, Fast, and Mini 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 three speed modes (Pro / Fast / Mini).

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
- "mini" - Lower-cost 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"

seed

Type: number (optional)
Default: -1 (random)
Range: -1 to 4294967295 (2^32 - 1)
Description: Random seed integer for reproducibility. Using the same seed with the same parameters produces similar results. Set to -1 for random generation

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, Mini 72 credits/s
720P: Pro 250 credits/s, Fast 162 credits/s, Mini 120 credits/s
1080P: Pro 625 credits/s, Fast 405 credits/s, Mini 300 credits/s
Examples (720P):
- 5s Pro = 1,250 credits | 5s Fast = 810 credits | 5s Mini = 600 credits
- 10s Pro = 2,500 credits | 10s Fast = 1,620 credits | 10s Mini = 1,200 credits
- 15s Pro = 3,750 credits | 15s Fast = 2,430 credits | 15s Mini = 1,800 credits
Examples (1080P):
- 5s Pro = 3,125 credits | 5s Fast = 2,025 credits | 5s Mini = 1,500 credits
- 10s Pro = 6,250 credits | 10s Fast = 4,050 credits | 10s Mini = 3,000 credits
Examples (480P):
- 5s Pro = 700 credits | 5s Fast = 450 credits | 5s Mini = 360 credits
- 10s Pro = 1,400 credits | 10s Fast = 900 credits | 10s Mini = 720 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",
      "seed": 42
    }
  }'

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 mini or 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