Genie 4 vs Genie 3 vs Marble: what the demos show and hide

A comparison of demo footage from three world models: Google DeepMind's Genie 4 generates a real-time interactive world with audio and dialogue, Genie 3 runs at 720p and 24fps, and World Labs' Marble builds persistent 3D worlds exportable as meshes and Gaussian splats. The author notes demos omit latency, failures and object drift in long sessions, and Genie 4 remains a research preview for trusted testers.

• Genie 4 generates video, audio and dialogue in real time, demoed at 1080p
• Genie 3 outputs interactive 720p worlds at 24fps with minutes-long consistency
• Marble builds persistent 3D worlds exportable as meshes and Gaussian splats
• Genie 4 is a research preview with a waitlist, not a shipping product