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POST
/
api
/
v1
/
seedance
/
multimodal-video
Seedance 2.0 Multimodal Video
curl --request POST \
  --url https://api.modelhunter.ai/api/v1/seedance/multimodal-video \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "input": {
    "prompt": "<string>",
    "first_frame_url": "<string>",
    "last_frame_url": "<string>",
    "reference_image_urls": [
      "<string>"
    ],
    "reference_video_urls": [
      "<string>"
    ],
    "reference_audio_urls": [
      "<string>"
    ],
    "generate_audio": true,
    "resolution": "<string>",
    "aspect_ratio": "<string>",
    "duration": 123,
    "web_search": true,
    "nsfw_checker": true
  },
  "webhookUrl": "<string>",
  "metadata": {}
}
'
{
  "success": true,
  "data": {
    "id": "task_abc123",
    "status": "pending",
    "type": "multimodal-video",
    "provider": "seedance",
    "model": "bytedance/seedance-2",
    "created_at": "2026-05-15T10:00:00Z",
    "estimated_seconds": 300
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.modelhunter.ai/llms.txt

Use this file to discover all available pages before exploring further.

​
Body Parameters

​
model
string
required
Seedance 2.0 model to use:
  • bytedance/seedance-2
​
input
object
required
Input parameters for the generation.
​
webhookUrl
string
URL to receive a webhook when the task completes.
​
metadata
object
Custom key-value metadata to attach to the task.

​
Pricing

Seedance 2.0 is billed per second by resolution:
Request type480p720p1080p
No video reference$0.095/sec$0.205/sec$0.51/sec
With video reference$0.0575/sec$0.125/sec$0.31/sec
When reference_video_urls is provided, billing uses input plus output seconds. Image, first/last frame, and audio references without a video reference use the no-video-reference tier.

​
Example

curl -X POST https://api.modelhunter.ai/api/v1/seedance/multimodal-video \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance/seedance-2",
    "input": {
      "prompt": "A cinematic product reveal with smooth camera motion and realistic lighting",
      "first_frame_url": "https://cdn.example.com/first-frame.png",
      "reference_audio_urls": ["https://cdn.example.com/reference-audio.mp3"],
      "generate_audio": false,
      "resolution": "720p",
      "aspect_ratio": "16:9",
      "duration": 5
    },
    "metadata": {
      "project": "launch-video"
    }
  }'

{
  "success": true,
  "data": {
    "id": "task_abc123",
    "status": "pending",
    "type": "multimodal-video",
    "provider": "seedance",
    "model": "bytedance/seedance-2",
    "created_at": "2026-05-15T10:00:00Z",
    "estimated_seconds": 300
  }
}