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Runway Launches Gen-4.5: AI Transforms Images into Videos

1/22/2026

Summary

Story summary

Runway unveiled its Gen-4.5 video model, a significant advance in artificial intelligence video generation.
Gen-4.5 can convert static images into dynamic videos with photorealistic characters.
It builds on Gen-1, released two years ago, and improves pre- and post-training efficiency.
Gen-4.5 achieved a top score in the Artificial Analysis Text to Video benchmark.
It still shows limitations in causal reasoning and object permanence, and Runway continues to push the technology.

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Story summary

Runway unveiled its Gen-4.5 video model, a significant advance in artificial intelligence video generation.
Gen-4.5 can convert static images into dynamic videos with photorealistic characters.
It builds on Gen-1, released two years ago, and improves pre- and post-training efficiency.
Gen-4.5 achieved a top score in the Artificial Analysis Text to Video benchmark.
It still shows limitations in causal reasoning and object permanence, and Runway continues to push the technology.