Runway ML/Gen4 Aleph (Video Edit)

gen4_aleph

Runway/Gen 4 AlephLLMs.txt

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.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v7/video-fusion/video-to-video

API Authentication

Authentication requires a valid API key included in the request. Generate and manage your API keys from your developer dashboard. Include the key in the key parameter for all API requests.

Integration Examples

Production-ready code samples for API integration

{
  "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",
  "model_id": "gen4_aleph",
  "key": "YOUR_API_KEY"
}

SDKs

Official SDKs

Production-ready SDKs and client libraries for all major programming languages

JavaScript

Python

PHP

API Parameters

Technical specifications for API request parameters.

Field Name	Parameter	Technical Description
Video	`init_video`	Upload the reference video. Accepted format MP4, webm, mov, Ogg. All videos are limited to 16MB
Prompt	`prompt`	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.
Ratio	`aspect_ratio`	The resolution of the output video. Accepted value "1280:720" "720:1280" "1104:832" "960:960" "832:1104" "1584:672" "848:480"
Public Figure Threshold	`public_figure_threshold`	When set to low, the content moderation system will be less strict about preventing generations that include recognizable public figures.
Model	`model_id`	Model to use for generation