# Gen4 Aleph (Video Edit)

> Gen-4 Aleph is Runway’s AI model is Future of VFX, that edits and transforms videos from prompts, allowing style changes, object edits, and scene adjustments with smooth, consistent motion.

## Overview

- **Model ID**: `gen4_aleph`
- **Category**: video
- **Provider**: runway_ml
- **Status**: model_ready
- **Screenshot**: `https://assets.modelslab.com/generations/758d0c21-08ed-4939-99ed-d4564b6794b6.webp`

## API Information

This model can be used via our HTTP API. See the API documentation and usage examples below.

### Endpoint

- **URL**: `https://modelslab.com/api/v7/video-fusion/video-to-video`
- **Method**: POST

### Parameters

- **`init_video`** (required): Upload the reference video. Accepted format MP4, webm, mov, Ogg. All videos are limited to 16MB
  - Type: file

- **`prompt`** (required): A non-empty string up to 1000 characters (measured in UTF-16 code units). This should describe in detail what should appear in the output.
  - Type: textarea
  - Example: Enter Prompt

- **`aspect_ratio`** (required): The resolution of the output video. Accepted value "1280:720" "720:1280" "1104:832" "960:960" "832:1104" "1584:672" "848:480"
  - Type: select (options: 1280:720, 720:1280, 1104:832, 960:960, 832:1104, 1584:672, 848:480, 640:480)

- **`public_figure_threshold`** (optional): When set to low, the content moderation system will be less strict about preventing generations that include recognizable public figures.
  - Type: select (options: low, auto)

- **`model_id`** (optional): 
  - Type: text

## Usage Examples

### cURL

```bash
curl --request POST \
  --url https://modelslab.com/api/v7/video-fusion/video-to-video \
  --header "Content-Type: application/json" \
  --data '{
    "key": "YOUR_API_KEY",
    "model_id": "gen4_aleph",
    "init_video": "https://assets.modelslab.com/generations/069b5d64-3699-4bc5-98bd-46e30ded661a.mp4",
    "prompt": "make it winter",
    "aspect_ratio": "1280:720",
    "public_figure_threshold": "low"
  }'
```

### Python

```python
import requests

response = requests.post(
    "https://modelslab.com/api/v7/video-fusion/video-to-video",
    headers={
        "Content-Type": "application/json"
    },
    json={
        "key": "YOUR_API_KEY",
        "model_id": "gen4_aleph",
        "init_video": "https://assets.modelslab.com/generations/069b5d64-3699-4bc5-98bd-46e30ded661a.mp4",
        "prompt": "make it winter",
        "aspect_ratio": "1280:720",
        "public_figure_threshold": "low"
    }
)

print(response.json())
```

### JavaScript

```javascript
fetch("https://modelslab.com/api/v7/video-fusion/video-to-video", {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "key": "YOUR_API_KEY",
    "model_id": "gen4_aleph",
    "init_video": "https://assets.modelslab.com/generations/069b5d64-3699-4bc5-98bd-46e30ded661a.mp4",
    "prompt": "make it winter",
    "aspect_ratio": "1280:720",
    "public_figure_threshold": "low"
  })
})
.then(response => response.json())
.then(data => console.log(data));
```

## Links

- [Model Playground](https://modelslab.com/models/gen4-aleph-video-to-video/gen4_aleph)
- [API Documentation](https://docs.modelslab.com)
- [ModelsLab Platform](https://modelslab.com)