🎬 Your first AI video is free — no card required 7 models from $0.50/video

Runway Gen-4.5 AI Video Generator

premium

by Runway — #1 ranked for physical coherence

premium
5 credits ($2.50/video)
~120s
Try Runway Gen-4.5

About Runway Gen-4.5

Runway Gen-4.5 is the top-ranked AI video generation model, known for best-in-class physical coherence, precise camera control, and cinematic visual quality. It consistently outperforms competing models in blind quality tests and community benchmarks.

Gen-4.5 excels at understanding real-world physics — objects interact naturally, liquids flow realistically, and camera movements feel intentional and smooth. The model produces videos with a distinctly cinematic quality that rivals professional footage.

On VideoForge, you can access Gen-4.5 without a Runway subscription at 5 credits per video (~$2.50). Generation takes approximately 120 seconds due to the model's higher compute requirements. It's the ideal choice for filmmakers, advertisers, and creators who need the absolute highest quality output.

Capabilities

  • Best physical coherence in the industry
  • Precise camera control
  • Cinematic visual quality
  • Multiple aspect ratios
  • Up to 5 second duration
  • Seed control for reproducibility

Supported Parameters

Controls available when generating with Runway Gen-4.5.

ParameterDefault
Text Prompt--
Aspect Ratio16:9
Duration5
Seed--

Sample Prompts for Runway Gen-4.5

Click a prompt to try it in the generator.

Pricing

No subscription required. Buy credits and use them on any model.

Runway Gen-4.5

$2.50/video

5 credits per generation

Starter

$3.00/5 credits

1 Runway Gen-4.5 video

Creator

$7.50/15 credits

3 Runway Gen-4.5 videos

Pro

$20.00/50 credits

10 Runway Gen-4.5 videos

Other AI Video Models

Compare Runway Gen-4.5 with other models on VideoForge.

Frequently Asked Questions

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Generate your first video free. Runway Gen-4.5 starts at $2.50/video — no subscription needed.

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