Runway Gen-4 - Free AI Video Generator

Industry-leading AI generation from the creators of Stable Diffusion

Runway Gen-4 is the latest generation of AI models from Runway ML, the New York-based company that co-created Stable Diffusion and has been at the forefront of creative AI since 2018. Runway is the most established name in AI video generation, trusted by professional filmmakers, advertising agencies, and Hollywood studios. On Genkee AI, the Gen-4 family includes Gen4 Turbo for video (image-to-video) and Gen4 Image for still image generation — both inheriting Runway's signature cinematic aesthetic with film-grade color grading and dramatic lighting. Gen4 Turbo specializes in image-to-video workflows: upload a reference image as the starting frame and the model generates precise, controlled motion while maintaining visual consistency. It supports 6 aspect ratios including 21:9 for cinematic widescreen, with seeded generation for reproducible results. On Genkee AI, Gen4 Turbo starts at 8 credits for a 5-second video — significantly more affordable than Runway's standalone pricing.

Key Features

Image-to-video specialist: precise motion from a known starting frame

Cinematic aesthetic with film-grade color grading and dramatic lighting

6 aspect ratios including 21:9 for cinematic widescreen

Seeded generation for reproducible, consistent results

Gen4 Image also available for still image generation (2-3 credits)

Technical Specifications

Category	video Generation
Resolution	16:9, 9:16, 4:3, 3:4, 1:1, 21:9
Duration	5s, 10s
Capabilities	image-to-video
Starting Credits	8 credits
Estimated Time	60-300s
Last Updated	2026-03-06

How to Use Runway Gen-4

Write Your Prompt or Upload an Image

Describe the video you want to create with Runway Gen-4. Include details about the scene, action, camera movement, and style.

Configure Settings

Choose your preferred resolution, duration. Higher settings produce better results but use more credits.

Generate and Download

Click generate and wait 60-300s for your video. Download the result or share it directly.

Use Cases

Animating product photos into dynamic showcase videos for e-commerce

Bringing still photography to life with subtle, cinematic motion (parallax, camera drift)

Creating cinematic widescreen (21:9) video from concept art or storyboard frames

Pre-production visualization for film and advertising projects

Frequently Asked Questions

What is Runway Gen-4?▼

Runway Gen-4 is the latest generation of AI models from Runway ML, offering both video generation (Gen4 Turbo) and image generation (Gen4 Image). Runway co-created Stable Diffusion and is trusted by Hollywood studios.

Does Gen4 Turbo require an input image?▼

Yes, Gen4 Turbo is an image-to-video model. You upload a reference image as the starting frame, and the model generates motion from it. This design ensures precise control and visual consistency.

How much does Runway Gen-4 cost on Genkee?▼

Gen4 Turbo costs 8 credits for a 5-second video and 15 credits for 10 seconds. Gen4 Image costs 2-3 credits per image. Significantly more affordable than Runway standalone pricing.

Is Runway Gen-4 free to use on Genkee?▼

New users receive free credits on Genkee AI that can be used on any model, including Runway Gen-4. No separate Runway subscription required.