Gen-4.5 at a glance
Runway's Gen-4.5 text-to-video model ranked first on the Artificial Analysis Text-to-Video leaderboard at launch and is included in all paid Runway plans.
What changed with Gen-4.5
Runway introduced Gen-4.5 on December 1, 2025, a video generation model focused on prompt adherence, realistic motion, and visual consistency across photorealistic and stylized looks. Runway says objects move with believable weight and momentum and that fine details like hair and fabric stay coherent over time.
At launch, Runway reported Gen-4.5 in first place on the Artificial Analysis Text-to-Video leaderboard with 1,247 Elo points as of November 30, 2025, ahead of Veo 3, Kling 2.5, and Sora 2 Pro. It is included in all paid Runway plans, and Runway's changelog added Gen-4.5 image-to-video on January 21, 2026.
Gen-4.5 in numbers
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Artificial Analysis Text-to-Video Elo (as reported by Runway)as of · Source for Artificial Analysis Text-to-Video Elo (as reported by Runway): runway.com (opens in a new tab)
- 1,247 Elo
Where to compare Gen-4.5
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
Leaderboards
General leaderboards
Official resources
Why Gen-4.5 matters for businesses
Runway also lists known weaknesses: effects can appear before their causes, objects can vanish or appear between frames, and actions succeed more often than they realistically would. For ad and product video work, human review remains part of the workflow.
Sources for this story
- Introducing Runway Gen-4.5 (opens in a new tab)Official
Runway · runway.com
- Runway changelog (opens in a new tab)Official
Runway · runway.com
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
- #video-generation
- #runway
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