# Alibaba | HappyHorse 1.0 | Video Edit

Enables advanced video editing through natural language instructions, supporting local or global modifications with up to 5 reference images while preserving the original motion dynamics.

## API Information

- **Model Slug:** alibaba-happyhorse-1-0-video-edit
- **Branded URL:** https://www.eachlabs.ai/alibaba/happyhorse-1-0/alibaba-happyhorse-1-0-video-edit
- **Provider:** Alibaba
- **Category:** Video to Video
- **Output Type:** video
- **Status:** active
- **Version:** 0.0.1
- **Base Cost:** 720P pricing: $0.14/sec (input + output video billed)
- **Estimated Processing Time:** 130 seconds
- **Last Updated:** 2026-04-27
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/alibaba-happyhorse-1-0-video-edit

## Pricing

- **Charge Type:** dynamic
- **Pricing Details:** 720P pricing: $0.14/sec (input + output video billed)

### Pricing Rules

| Condition | Pricing |
| --- | --- |
| resolution == "720P" | 720P pricing: $0.14/sec (input + output video billed) |
| Rule 2 | 1080P pricing: $0.24/sec (input + output video billed, default) |

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | Text prompt describing the desired edit (style transfer, local replacement, etc.). Supports any language. |
| video_url | string | Yes | - | - | URL of the video to edit. MP4/MOV. 3-60s (capped at 15s output). Longer side <=2160px, shorter side >=320px. Max 100MB. |
| reference_images | array | No | - | - | Optional 0-5 reference images guiding the edit. JPEG/JPG/PNG/WEBP. Min 300px each side. Max 10MB each. |
| resolution | string | No | 1080P | ["720P","1080P"] | Output resolution. 720P: lower cost, faster. 1080P: higher quality (default). |
| audio_setting | string | No | auto | ["auto","origin"] | Audio handling. auto: model decides whether to regenerate audio (default). origin: preserve the original audio. |
| seed | integer | No | - | 0–2147483647 | Seed for reproducibility. Same seed produces similar (not identical) results. Random if omitted. |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "alibaba-happyhorse-1-0-video-edit",
  "input": {
    "prompt": "Make the woman character in the video wear the red outfit from the reference image.",
    "video_url": "https://cdn-us.eachlabs.ai/uploads/d979cd9d-bacb-4179-a654-f377ec49c5c0.mp4"
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "string (URL of generated video)",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "X-API-Key: YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `X-API-Key` |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Overview

**Alibaba | HappyHorse 1.0 | Video Edit Overview**

Alibaba | HappyHorse 1.0 | Video Edit empowers users to transform existing videos using natural language instructions, enabling precise local or global modifications while maintaining original motion dynamics. Developed by Alibaba as part of the HappyHorse 1.0 family, this video-to-video model leverages a unified 15B-parameter Transformer architecture for high-quality edits at 1080p resolution. Its standout feature is single-pass joint audio-video processing, ensuring seamless lip-sync and motion preservation during edits, setting it apart in the Alibaba video-to-video landscape. Ideal for creators needing efficient video refinement without losing temporal consistency, Alibaba | HappyHorse 1.0 | Video Edit supports up to 5 reference images for guided changes, making it a top choice on platforms like each::labs for professional workflows.

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `X-API-Key: YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.