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Seedance

Seedance is a video generation model by ByteDance/Doubao, supporting first-last frame video and reference image video generation.

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First-Last Frame Video

Generate smooth transition videos by providing first and last frame images.

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Via Unified Video API

POST /v1/video/create
cURL
curl -X POST https://crazyrouter.com/v1/video/create \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "seedance-lite",
    "prompt": "Smooth transition, person changes from smiling to laughing",
    "images": [
      "https://example.com/start_frame.jpg",
      "https://example.com/end_frame.jpg"
    ],
    "aspect_ratio": "16:9"
  }'

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Response Example

{
  "id": "seedance_task_abc123",
  "status": "processing",
  "status_update_time": 1709123456
}

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Reference Image Video

Generate video using a single reference image:
cURL
curl -X POST https://crazyrouter.com/v1/video/create \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "seedance-lite",
    "prompt": "The person in the image starts dancing",
    "images": ["https://example.com/portrait.jpg"],
    "aspect_ratio": "9:16"
  }'

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Query Task

GET /v1/video/query?id={task_id}
cURL
curl "https://crazyrouter.com/v1/video/query?id=seedance_task_abc123" \
  -H "Authorization: Bearer YOUR_API_KEY"

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Response Example (Completed)

{
  "id": "seedance_task_abc123",
  "status": "completed",
  "status_update_time": 1709123520,
  "video_url": "https://crazyrouter.com/files/seedance_abc123.mp4"
}

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Available Models

ModelDescription
seedance-liteSeedance Lite, fast generation
Seedance excels at human motion and facial expression changes, making it particularly suitable for portrait video generation.