Meta's Chief AI Scientist Yann LeCun Leaves to Launch AI Startup.
1. Yann LeCun, Meta's chief AI scientist, is leaving the company. 2. He will start an AI venture focused on world models and foundational research. 3. Departure follows changes in Meta's AI strategy, signaling possible internal disagreements. 4. LeCun's exit may affect talent, research direction, and external perception of Meta AI.