Is Runway Gen 4.5 free?

Runway offers a free tier with one-time credits to try the model, but sustained use requires a subscription starting at $12/month.

Is Gen 4.5 better than Sora 2?

According to the Video Arena blind test benchmarks, yes. Gen 4.5 scores 1247 Elo points compared to Sora 2 Pro's 1206 points.

Can I use Gen 4.5 for commercial work?

Yes, users on paid plans have full commercial ownership of the videos they generate.

How long are the videos?

Gen 4.5 typically generates clips up to 10 seconds in length, which can be extended using the "Extend Video" feature.

Runway Gen 4.5

Most advanced video model from runway ML.

From Runway AI, Inc.

Founder: Cristóbal Valenzuela

Video & Animation

1 Dec 2025

300K+

Freemium

Pricing Model

Freemium

Starting Price

$12/Month

About This AI

Runway Gen 4.5 is a state-of-the-art text-to-video diffusion model that leads the industry in physical accuracy and motion fidelity.

It allows users to generate cinematic, photorealistic videos from simple text prompts, specifically excelling at rendering liquids, heavy objects, and complex character emotions.

It currently holds the #1 spot on global AI video leaderboards.

AI Art Text To Image Video Editor

Pricing

Pricing Model

Freemium

Starting Price

$12/Month

Key Features

Accurately simulates gravity, momentum, and fluid dynamics.
Highest Elo score (1247) on Video Arena, beating Veo 3 and Sora 2.
Renders subtle human emotions like rapid blinking or slight head tilts.
Includes Director Mode for precise camera control (zoom, pan, tilt).
Optimized on NVIDIA Blackwell GPUs for speed.

Pros

Best-in-class motion realism.
Available to all users (no waitlist).
Flexible pricing tiers.
Strong community and tutorials.

Cons

Long term causality issues (objects forgetting state).
Credit heavy for high resolution outputs.
Browser based editor can be heavy on RAM.

Best for Filmmakers, advertising agencies, and content creators who need physically accurate, high-definition stock footage or B-roll without filming.

FAQs

Is Runway Gen 4.5 free?
Runway offers a free tier with one-time credits to try the model, but sustained use requires a subscription starting at $12/month.
Is Gen 4.5 better than Sora 2?
According to the Video Arena blind test benchmarks, yes. Gen 4.5 scores 1247 Elo points compared to Sora 2 Pro’s 1206 points.
Can I use Gen 4.5 for commercial work?
Yes, users on paid plans have full commercial ownership of the videos they generate.
How long are the videos?
Gen 4.5 typically generates clips up to 10 seconds in length, which can be extended using the “Extend Video” feature.