video generation

Endpoint: POST https://4zapi.com/alibailian/api/v1/services/aigc/video-generation/video-synthesis

Unified creation entry for asynchronous video synthesis tasks such as Wan image-to-video/text-to-video and HappyHorse video editing, distinguished by model:

• Wan image-to-video models (e.g. wan2.5-i2v-preview): input.img_url (first-frame image) and input.prompt are required.
• happyhorse-1.0-video-edit: input.media is required (1 video + 0-5 reference images).

Returns output.task_id; poll GET /alibailian/api/v1/tasks/{task_id} for the result.

Request body (application/json)

• input (object, required)
• model (string, required)
• parameters (object, required)

Request example

{
  "input": {
    "media": [
      {
        "type": "first_frame",
        "url": "https://cdn.translate.alibaba.com/r/wanx-demo-1.png"
      }
    ],
    "prompt": "一只猫在草地上奔跑"
  },
  "model": "happyhorse-1.0-i2v",
  "parameters": {
    "duration": 5,
    "resolution": "720P"
  }
}