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Runway gen-4.5 Review: What is is and What is New

This story is from 2026-09-22. It is preserved in the archive; the latest stories are on the live feed.

Runway Gen-4.5 is the company’s latest flagship text-to-video model, announced December 1, 2025. It’s positioned as an incremental but meaningful evolution over the Gen-4 family, with focused improvements in motion quality, prompt adherence, and temporal/physical realism — the exact areas that hist…

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  1. 2026-09-22 02:31 · DEV Community — AI
    Runway gen-4.5 Review: What is is and What is New

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