Diverging Approaches to AI World Models: How Fei-Fei Li, Yann LeCun and DeepMind Are Pursuing Different Paths
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Summary
The article explores how leading AI researchers and organizations are pursuing different approaches to "world models" - AI systems that can understand and simulate complex environments. Fei-Fei Li's World Labs developed Marble, a multimodal world model that creates walkable 3D scenes from prompts. DeepMind is working on SIMA 2, an embodied agent that learns in virtual worlds, and Genie 3, an interactive video engine. Meanwhile, Yann LeCun is reportedly leaving Meta to start his own world-model company. The piece examines how the term "world model" has evolved to mean different things across these initiatives, from 3D scene generation to embodied learning and video simulation.
Key quotes
· 4 pulledAI has finally reached the 'we need to model the whole world' phase.
Same phrase. Three very different bets.
DeepMind, meanwhile, is also calling its interactive video engine Genie 3 a world model.
Decades before Gaussian splats, SIMA 2, JEPA and Genie 3 — and why 'world model' now means three very different things at once.
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