curl --request POST \
  --url https://api.vidgo.ai/api/generate/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "alibaba/happyhorse-1.0/reference-to-video",
  "input": {
    "prompt": "A quiet forest under soft morning light, with natural detail.",
    "aspect_ratio": "16:9",
    "resolution": "1080p",
    "duration": 5,
    "reference_image_urls": [
      "https://example.com/image.png"
    ]
  }
}
'

{
  "code": 200,
  "data": {
    "task_id": "task-unified-example",
    "status": "running",
    "created_time": "2026-09-10T08:00:00"
  }
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

"Request timeout"

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": "<string>"
}

​

Happy Horse Reference to Video

Use reference images to shape new Happy Horse video scenes, combining visual direction with a written description at up to 1080p.

​

Available Models

• alibaba/happyhorse-1.0/reference-to-video - Generate a new video guided by reference material and a prompt.

​

Duration Options

• 3-15 seconds - Set duration as an integer. Default: 5 seconds.

​

Key Features

• Guide video generation with one to nine reference images.
• Choose from 720p, 1080p output resolutions.

​

Advanced Parameters

Set model and optional callback_url at the request root. Place the parameters below inside input. Send only the input fields supported by this workflow. Unsupported input fields are rejected before credits are deducted. Input URLs must use HTTP(S), include a hostname, and contain no embedded credentials.

​

Prompt

• prompt: Required. Describe the scene and desired motion.
• The prompt must not be blank when supplied. Maximum length: 5,000 characters.

​

Reference Inputs

• reference_image_urls: Required; provide up to 9 images.
• Describe referenced subjects in the prompt; character1 and character2 markers are not required.

​

Resolution

• resolution: 720p, 1080p. Default: 1080p.

​

Aspect Ratio

• aspect_ratio: 16:9, 9:16, 1:1, 4:3, 3:4. Default: 16:9.

​

Seed

• seed is optional. Supply an integer from 0 to 2147483647.

​

Safety Checker

• enable_safety_checker is optional. Set it to true or false to control safety checking.

​

Pricing

Pricing depends on the selected model and applicable output settings. Check the Vidgo dashboard for the current rate. Credits are deducted on submission and refunded if the task fails.