Happy Horse 1.1 Text to Video

curl --request POST \
  --url https://api.vidgo.ai/api/generate/submit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "alibaba/happyhorse-1.1/text-to-video",
  "input": {
    "prompt": "A quiet forest under soft morning light, with natural detail.",
    "aspect_ratio": "16:9",
    "resolution": "1080p",
    "duration": 5
  }
}
'

{
  "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>"
}

Generate short video scenes with Happy Horse 1.1, with output up to 1080p and framing from wide cinematic layouts to tall vertical video.

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Models

• alibaba/happyhorse-1.1/text-to-video - Generate video scenes from text prompts.

​

Features

• Generate video scenes from text prompts.
• Choose from 720p, 1080p output resolutions.

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Duration Options

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

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Advanced Parameters

Set model and optional callback_url at the request root. Place all workflow parameters, including output options, inside input. Send only the input fields supported by this workflow. Unsupported input fields are rejected before credits are deducted. duration and seed also accept integer strings such as "5"; decimal numbers such as 5.0 and decimal strings such as "5.0" are rejected. Null or empty values use the default duration or omit the seed. Supported boolean fields also accept 0/1 and case-insensitive strings true/false, 1/0, yes/no, y/n, and on/off; null omits the field. Surrounding whitespace is trimmed, and resolution values are case-insensitive.

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Prompt

• prompt: Required. Describe the scene and desired motion. Maximum: 2,500 Unicode characters.
• Leading and trailing whitespace is trimmed. A nonblank prompt is required.

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Aspect Ratio

• aspect_ratio: Optional. Accepted values: 21:9, 16:9, 4:3, 1:1, 3:4, 4:5, 5:4, 9:16, 9:21. Default: 16:9.

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Resolution

• resolution: Optional. Accepted values: 720p, 1080p. Default: 1080p.

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Seed

• seed: Optional. Set the generation seed. Integer from 0 to 2147483647.

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Safety Checker

• enable_safety_checker: Optional. Control safety checking. Use true or false.

​

Pricing

Usage equals output seconds multiplied by the selected resolution rate. See Pricing for current rates. Credits are deducted on submission and refunded if the task fails.