Meta's chief AI scientist, Yann LeCun, is set to leave the company to establish his own startup, amid a significant restructuring of Meta's AI operations led by CEO Mark Zuckerberg. LeCun, a Turing Award laureate and a key figure in modern AI, has announced his departure plans to colleagues and is in preliminary discussions to secure funding for his new venture. LeCun's exit follows a series of leadership changes and organizational shifts at Meta, including the departure of AI research VP Joelle Pineau in May and recent layoffs affecting around 600 employees in the AI research division. These moves are part of Meta's strategy to streamline operations and enhance product development efficiency.