HappyHorse 1.0 Video Edit

HappyHorse 1.0 Video Edit edits an input video based on reference images and text prompts. Uses an asynchronous task interface — submit a task and poll until completion.

⚠️ Native format required. Because video-edit requires both “video + reference image” simultaneously, the unified fields cannot express this, so you must use the DashScope native-style request body (input.media[] array).

Key Capabilities

Video editing — Modify objects, clothing, or scenes in existing videos
Resolution — 720P / 1080P
Watermark control — Optionally disable the bottom-right watermark

⚠️ The output video duration is determined by the input video length. The duration parameter may not take effect for video-edit.

Workflow

POST /v1/video/generations  →  task_id   (must use input.media[] format)
GET  /v1/video/generations/{task_id}  →  Poll until SUCCESS / FAILURE
Read data.result_url  (valid for 24 hours)

Quick Example

curl https://ai.alad.com/v1/video/generations \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "happyhorse-1.0-video-edit",
    "input": {
      "prompt": "Make the character in the video wear the striped sweater shown in the image",
      "media": [
        {"type": "video", "url": "https://example.com/source.mp4"},
        {"type": "reference_image", "url": "https://example.com/cloth.webp"}
      ]
    },
    "parameters": {
      "resolution": "720P",
      "watermark": false
    }
  }'

import requests

headers = {"Authorization": "Bearer YOUR_API_KEY"}

resp = requests.post(
    "https://ai.alad.com/v1/video/generations",
    headers=headers,
    json={
        "model": "happyhorse-1.0-video-edit",
        "input": {
            "prompt": "Make the character in the video wear the striped sweater shown in the image",
            "media": [
                {"type": "video", "url": "https://example.com/source.mp4"},
                {"type": "reference_image", "url": "https://example.com/cloth.webp"},
            ],
        },
        "parameters": {"resolution": "720P", "watermark": False}
    }
)
task_id = resp.json()["task_id"]

Parameters

Parameter	Type	Required	Description
`model`	string	Yes	Must be `happyhorse-1.0-video-edit`
`input.prompt`	string	Yes	Editing description text
`input.media`	array	Yes	Exactly 2 elements: 1 `video` + 1 `reference_image`
`input.media[].type`	string	Yes	`video` or `reference_image`
`input.media[].url`	string	Yes	Public URL of the video or reference image
`parameters.resolution`	string	No	`720P` / `1080P`, default `1080P`
`parameters.watermark`	boolean	No	Default `true`, set to `false` to disable watermark
`parameters.seed`	integer	No	Random seed `[0, 2147483647]`

Billing

Billed by resolution tier × billing duration. When duration is not specified, defaults to 5 seconds. Failed tasks are automatically refunded.

API Reference

HappyHorse 1.0 Video Edit interactive Playground.

Task Query

Poll task status and retrieve the final video URL.

Quick Start

Models

Resources

HappyHorse 1.0 Video Edit

Key Capabilities

Workflow

Quick Example

Parameters

Billing

API Reference

Task Query

​Key Capabilities

​Workflow

​Quick Example

​Parameters

​Billing

API Reference

Task Query

Key Capabilities

Workflow

Quick Example

Parameters

Billing