Apple's AI division experienced a significant setback as Ke Yang, a key executive leading a crucial AI-driven web search project, departed to join competitor Meta Platforms. The news, first reported by Bloomberg, highlights the escalating talent war in the artificial intelligence sector. Yang was in charge of the 'Answers, Knowledge, and Information' (AKI) team, which is central to a planned major overhaul of the Siri voice assistant aimed at making it more competitive with rivals like ChatGPT. This departure is one of several recent high-profile exits from Apple's AI teams to Meta, raising concerns about potential instability within Apple's AI organization as it strives to keep pace with competitors. No specific market reaction for October 17, 2025, was available in the search results. Also on October 17, pre-orders for the new Apple Vision Pro, equipped with the recently announced M5 chip, began in mainland China and Singapore.