We've added Runway Gen-4.5 to the video generation model picker — Replicate's top-ranked text-to-video model with cinematic realism and precise prompt adherence.
Why This Matters
- Text-to-video out of the box: Generate 5 or 10 second clips from a prompt alone — no starting image required.
- Optional image-to-video: Provide a first-frame image when you want to animate a still.
- Benchmark-leading quality: #1 on the Artificial Analysis Text-to-Video leaderboard (1,247 Elo as of Nov 2025).
What's New
- New video model: Runway Gen-4.5 (
runway-gen-4.5) via Replicate. - Durations: 5 or 10 seconds.
- Aspect ratios: 16:9, 9:16, 4:3, 3:4, 1:1, and 21:9.
- Output: 720p MP4.
Pricing
Pricing reflects upstream Runway API rates with our standard 30% platform markup:
- $0.156 / second ($0.78 for 5s, $1.56 for 10s)
How To Use It
Select Gen-4.5 in the video generation model picker, write a detailed motion prompt, and optionally attach a first-frame image for image-to-video.