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Runway Gen-4

Runway Gen-4

Ultra-realistic text-generated videos.

2025-04-02

Video Generation

Pricing:

$0.5/call

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API Overview

Ultra-realistic text-generated videos.

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API Reference (2)

API Description	API Endpoint	Request Method	Stability	Parameter Description
Runway Gen-4（Image-to-Video）	https://api.302.ai/runway_gen4/submit	POST	Stable	View Details
Document Details The updated Runway Gen4 (as of April 1) allows fast video generation from images. Text-to-video is not supported at the moment. Price: 0.5 PTC/call Request Parameters Header Parameters Authorizationstring Required Example Value:`Bearer {{YOUR_API_KEY}}` Request Body multipart/form-data init_imagestring Optional Images must be in one of the following resolutions: 1280 × 768 (16:9) 768 × 1280 (9:16) 960 × 960 (1:1) text_promptstring Optional Video prompt (optional): Chinese is not supported. You may leave it blank if not needed. secondsinteger Optional Duration options: 5 or 10 seconds. Example Value:`10` seedstring Optional Use prompts only if you need to maintain consistency.
Fetch	https://api.302.ai/runway/task/{id}/fetch	GET	Stable	View Details
Document Details Runway Gen-3, creating a 10-second video based on the text/image. Runway：https://runwayml.com/ This interface is only used for retrieving tasks and is free of charge. Price: 0 PTC / call Request Parameters Path Parameters idstring Required Example Value:`runway_xxxx` Header Parameters Authorizationstring Required Example Value:`Bearer {{YOUR_API_KEY}}` Query Parameters geostring Optional Example Value:`global`

API Pricing

$￥円 ₽

Model	Description	302.AI Price

Runway Gen4	Runway Gen4 Image-to-Video	$0.5/call
Fetch	Fetch Task	Free

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