API reference · Alibaba

alibaba/happy-horse/reference-to-video

Integrate this model through SandBase's unified API, with production-ready schemas and examples.

VIDEOAsyncOpen model

Production endpoint

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OpenAI-compatible endpoint with unified authentication and usage tracking.

POSThttps://api.sandbase.ai/v1/run

Model IDalibaba/happy-horse/reference-to-video

Input Schema

6 parameters · 2 required · 4 optional

Parameter	Type	Required	Description
`images`	string[]	Required	The URLs of the images to use for image-to-image generation or image editing.
`prompt`	string	Required	The text prompt to generate a video from, guided by the reference image. · Min length: 3 · Max length: 50000 · Default: "In the early morning, just as the sun begins to rise, a small pumpkin sits in the pumpkin patch with dewdrops glistening on its surface. Suddenly, with a crisp crack, a fissure appears on the little pumpkin, and golden light shines through the crack. The pumpkin splits open along with the golden glow, releasing a puff of white mist, and a little rabbit appears in the center of the cracked pumpkin."
`seed`	integer	Optional	Random seed for reproducible results. Set to -1 for random seed.
`duration`	integer	Optional	The duration of the generated video in seconds. · Options: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 · Default: 5 3456789101112131415
`resolution`	string	Optional	The resolution of the video to generate. · Options: 720p, 1080p · Default: "720p" 720p1080p
`aspect_ratio`	string	Optional	The aspect ratio of the generated video. · Options: 16:9, 9:16, 1:1, 4:3, 3:4 · Default: "16:9" 16:99:161:14:33:4

Output Schema

Field	Type	Description
`id`	string	Unique identifier for the generation task
`status`	string	Task status: pending, running, completed, failed, timeout
`model`	string	Model used for the generation
`outputs`	array	Array of output items
`outputs[].url`	string	URL of the generated artifact
`outputs[].content_type`	string	MIME type (e.g. image/png, video/mp4)
`error`	object \| null	Error details if failed, null on success
`error.type`	string	Machine-readable error type code
`error.message`	string	Human-readable error description

Async Workflow

This model uses asynchronous execution. Submit a request and poll for the result.

Submit — POST to /v1/run, receive an id
Poll — GET /v1/run/{id} until status is completed, failed, or timeout
Retrieve — Read outputs from the completed response

Code Examples

Ready-to-run snippets

# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
  "model": "alibaba/happy-horse/reference-to-video",
  "images": [
    "https://help-static-aliyun-doc.aliyuncs.com/assets/img/zh-CN/9000146771/p1067182.webp",
    "https://help-static-aliyun-doc.aliyuncs.com/assets/img/zh-CN/9000146771/p1067183.webp"
  ],
  "prompt": "In the early morning, just as the sun begins to rise, a small pumpkin sits in the pumpkin patch with dewdrops glistening on its surface. Suddenly, with a crisp crack, a fissure appears on the little pumpkin, and golden light shines through the crack. The pumpkin splits open along with the golden glow, releasing a puff of white mist, and a little rabbit appears in the center of the cracked pumpkin.",
  "duration": 5,
  "resolution": "720p",
  "aspect_ratio": "16:9"
}'

# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
  -H "Authorization: Bearer YOUR_API_KEY"

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