Tim Cook hands off Apple to John Ternus with the AI bet still in the balance
John Ternus officially becomes Apple (AAPL) chief executive today, and the transition has put Cook's record under a lens that extends well past revenue charts. The piece of that record most likely to define his…
Key takeaways
- John Ternus officially becomes Apple's chief executive today, succeeding Tim Cook.
- Under Cook, Apple more than quadrupled annual revenue and grew market capitalization to more than $4 trillion.
- Cook's defining strategic choice was building Apple's AI ambitions partly around external models, including Google's, rather than developing a frontier-model business of its own.
- Apple's revamped Siri, delayed across the board, is only now arriving with iOS 27 and required relying on models from Google.
- Cook's tenure also saw Apple's car project narrowed and then killed, and the Vision Pro failed to reach a mass market beyond VR enthusiasts.
John Ternus officially becomes Apple (AAPL) chief executive today, and the transition has put Cook's record under a lens that extends well past revenue charts. The piece of that record most likely to define his reputation is Apple's choice to build its AI ambitions partly around external models rather than a frontier-model business of its own, with Google supplying some of the most important capabilities. Whether that was the right call is still forming.
The growth record and the services layer
On growth, Cook more than quadrupled Apple's annual revenue over his tenure and grew the company's market capitalization to more than $4 trillion. He also built a services business that convinced hundreds of millions of iPhone and Mac owners to spend billions more on Apple TV+, Apple News, iCloud, and other subscriptions. From a margins standpoint, that layer is the part of the legacy that writes itself: recurring subscription revenue drawn from an installed base that large carries a cost structure hardware cannot match.
What Cook leaves less settled is the AI chapter. Apple's initial vision for Apple Intelligence, outlined at WWDC in June 2024, was ambitious and privacy-focused. The company described an AI capable of answering highly personalized questions while keeping underlying personal data on the device or in its privacy-protected cloud system. Apple ran into delays across the board. The centerpiece of that effort, a revamped Siri, is only now arriving with iOS 27, and reaching that point required relying on models from Google.
The setup and what to watch
The strategic question splits into two scenarios. If AI models become a commodity over time, Cook's decision to avoid the investment in model development and infrastructure that Google, Meta, Microsoft, OpenAI, and Anthropic have each committed could read as capital discipline at precisely the right moment. The opposing case is harder to dismiss. If OpenAI, Anthropic, or another AI company translates its model work into a successful new hardware platform, Apple's decision not to commit more of its resources to the next era of computing becomes a sharper critique. Apple's car project was narrowed and then killed on Cook's watch, and the Vision Pro has not found a mass market beyond VR enthusiasts willing to pay a premium.
The first real read on the AI strategy comes when iOS 27 and the revamped Siri land at scale, testing whether the Google-dependent approach can deliver the personalized, privacy-focused experience Apple described at WWDC nearly two years ago.