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TLDRocket
28 October 2026
Google DeepMind’s Genie 4 landed today as the cleanest signal yet that world models are moving from “cool demos” to something closer to usable simulation. Genie 4 previews explorable 3D environments that users can move through while getting synchronized audio, keeping a scene coherent for up to two minutes—double the prior Genie 3—and improving fluid motion and detail rendering. The catch is familiar: edits can still cause objects to disappear, and access is limited to trusted testers before rolling out to Google AI Ultra subscribers and select partners.
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