xAI co-founder Tony Wu says he has resigned, following co-founder Igor Babuschkin's exit in August 2025; Wu was in charge of reasoning and reported to Elon Musk
Why Leaders Keep Ditching Elon MuskAshley Capoot /CNBC:Elon Musk's xAI loses co-founder Tony Wu in latest senior departureMarcus Schuler /Implicator.ai:xAI Loses Half Its Founding Team After Two Cofounders Resign in 48 HoursReuters:Two cofounders of Elon Musk's xAI resign, joining exodusMinh Le /Tech in Asia:Musk's xAI co-founder steps downTheo Wayt /The Information:The Risk of the Muskiverse's Steady TurnoverCarmen Arroyo /Bloomberg:XAI Co-Founders Ba, Wu Join Exodus From Musk's AI StartupKyle