Video bailian

HappyHorse 1.1 Reference to Video

阿里云百炼 HappyHorse 1.1 参考生视频模型，支持 1 至 9 张角色或风格参考图。

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Capabilities

Basic generation

Parameters and specs

Aspect ratios
16:9 横屏 / 9:16 竖屏 / 1:1 方形 / 4:3 横屏 / 3:4 竖屏 / 4:5 竖屏 / 5:4 横屏 / 21:9 超宽 / 9:21 超长
Resolutions
720p / 1080p
Durations
3s / 4s / 5s / 6s / 7s / 8s / 9s / 10s / 11s / 12s / 13s / 14s / 15s
Reference limits
9 images

Model API

Model endpoints route to this capability through the model field or app/action fields in the request body. Include a MediaGo developer API key before calling them.

Method

POST

Endpoint

/api/v1/videos

Auth

Authorization: Bearer <mgak_...>

Result

/api/v1/videos/{generation_id}

The video endpoint returns generation_id and polling_url; poll the video job endpoint for status and results.

Key fields

model
Required. Use the current model ID.
prompt
Required. The generation prompt.
aspect_ratio
Optional. Output aspect ratio. Defaults to the model setting when omitted.
duration
Required. Video duration in seconds; -1 means adaptive.
resolution
Optional. Output resolution. Defaults to the model setting when omitted.
input_references
Optional. Reference image input array.
seed
Optional. Random seed.

Request example 

{
  "model": "happyhorse-1.1-r2v",
  "prompt": "Generate a 5-second product demo: slow camera push-in, screen turns on, interface data starts flowing.",
  "aspect_ratio": "16:9",
  "duration": 3,
  "resolution": "720p",
  "input_references": [
    {
      "type": "image",
      "url": "https://example.com/reference.png"
    }
  ]
}

Example uses

Example prompt

Generate a 6-second product demo: slow camera push-in, device screen turns on, interface data starts flowing.

Example prompt

Extend the rooftop city first frame into a sunset time-lapse while preserving the composition and person placement.

Example prompt

Create a vertical short-video shot list: coffee cup lands on table, steam rises, rainy window bokeh in the background.