Runway ML/Gen4 Text To Image

gen4_image

Runway/Gen 4 ImageLLMs.txt

Generates high-quality 5–10 second videos from a single image and text prompt with 1080p resolution, ensuring consistent characters, realistic physics-based motion, and precise camera control for cinematic storytelling.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v7/images/text-to-image

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

{
  "prompt": "vibrantlysharp style, animeniji, 3pic vist4, a female dragonborn sentinel clad in ancient obsidian armor carved from her own scales, with a ceremonial wrap lined in glowing red runes flowing from her waist, towering under a broken moon, blue embers curling off her horned crown, her golden eyes glowing softly through the shadows of a craggy battlefield.",
  "aspect_ratio": "1920:1080",
  "model_id": "gen4_image",
  "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
prompt	`prompt`	prompt
Aspect ratio	`aspect_ratio`	The proportional relationship between the width and height of an image. It's expressed as width:height (e.g., 16:9). It helps determine how the output will appear — square, vertical, or widescreen.
Model	`model_id`	Model