Apple's head of artificial intelligence, John Giannandrea, is set to leave the company next week, marking the end of an eight-year tenure. His departure concludes his strategic oversight of Apple's machine learning and AI initiatives, according to Apple's official statement.
The transition is tied specifically to the April 15 stock vesting date, concluding an advisory role he assumed after announcing his retirement in 2025. CEO Tim Cook acknowledged Giannandrea's contributions, stating the company is thankful for his role in advancing Apple's AI work.
John Giannandrea's Departure Details and Timeline
Giannandrea originally joined Apple in 2018, coming from Google where he had managed the company's search and AI operations. During his tenure at Apple, he was instrumental in developing Siri, overseeing machine learning infrastructure, and defining the broader AI strategy.His team was responsible for deploying key technologies, including Apple Foundation Models, Search and Knowledge, Machine Learning Research, and AI Infrastructure. However, his role was significantly scaled back in 2025, following the rollout of Apple Intelligence and subsequent delays in major Siri upgrades. After announcing his retirement in December 2025, he transitioned into an advisory capacity.
Amar Subramanya Appointed as Apple's New AI Vice President
The leadership vacuum is being filled by Amar Subramanya, who is appointed as the new vice president of AI. Subramanya brings a wealth of experience from major tech players, most recently serving as the corporate vice president of AI at Microsoft.His professional background includes a 16-year tenure at Google, where he was head of engineering for the Gemini Assistant. In his new role, Subramanya will lead Apple's core research, model development, and safety initiatives, reporting directly to software chief Craig Federighi.
Reports indicate that Giannandrea does not plan to join a direct competitor after leaving Apple. Instead, he intends to focus his future efforts on board positions and startup advisory roles.
Implications for Apple's Machine Learning Strategy
The appointment of Subramanya signals a focused continuation of Apple's commitment to integrating advanced AI into its ecosystem. Giannandrea's deep historical knowledge and leadership were crucial in building the initial machine learning infrastructure.Subramanya's background in both Microsoft's enterprise AI and Google's large-scale assistant development suggests a strong emphasis on model robustness and deployment safety. This leadership change ensures that the research and development efforts remain centralized under experienced hands.
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