Joelle Pineau, Meta's Vice President for AI Research, has announced her decision to step down by the end of May, concluding an eight-year tenure at the company. Pineau, also a computer science professor at McGill University, has been instrumental in promoting Meta's open-source approach to AI technology, notably with the large language model, Llama. Her departure comes amid heightened competition in AI development and precedes the inaugural LlamaCon AI conference on April 29. Meta has not yet disclosed her successor. Pineau assumed leadership of the AI research division in 2023, succeeding founder Yann LeCun, who remains Meta's chief AI scientist.