Runway on X: “Introducing our new frontier video model, Runway Gen-4.5. Previously k…”

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Runway

@runwayml

Introducing our new frontier video model, Runway Gen-4.5. Previously known as Whisper Thunder (aka) David.

Gen-4.5 is state-of-the-art and sets a new standard for video generation motion quality, prompt adherence and visual fidelity.

Learn more below.

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Dec 1, 2025, 2:01 PM UTC

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Runway on X: “Introducing our new frontier video model, Runway Gen-4.5. Previously k…” | PeekX