Runway Gen-4.5
Runway
Key facts · verified Oct 14, 2026
Runway Gen-4.5 is a Runway video generation model released on 1 Dec 2025. Pricing: 12 credits ($0.12) per second (Runway API). It ranks #27 on LMArena's text-to-video leaderboard (Elo 1225, read 2 Nov 2026). Source: docs.dev.runwayml.com.
Runway's Gen-4.5 video model (gen4.5) on the Runway API, billed at 12 credits, or $0.12, per second. It generates video from text or an image and can deliver ProRes, PNG sequences and HDR.
Pricing & specs checkedSource: vendor documentation · checked Oct 14, 2026LMArena: 1225 Elo (rank 27) · source · retrieved Nov 2, 2026
Key Features
Video Generation
Full Specifications
12 credits ($0.12) per second (Runway API) | |
|---|---|
| Identity | |
| Developer | Runway |
| Released | Dec 2025 |
| Cost | |
| Price per second | $0.12 (12 credits) |
| Capability | |
| Text-to-video | Yes |
| Image-to-video | Yes |
| Camera controls | ProRes, PNG sequence and HDR delivery |
| Access | |
| API | Yes — Runway API |
| Measured quality | |
| LMArena Elo | 1225 (checked Nov 2026) |
| LMArena rank | Rank 27 |