John Giannandrea, the former Chief of Artificial Intelligence at Apple, is rumored to have been demoted due to sluggish advancements in AI projects and differing opinions with senior executives, hinting at a possible exit from his current role. His notable absence from this year's Worldwide Developers Conference (WWDC) underscores this shift in his responsibilities. Previously, he had overseen ventures like the Siri voice assistant, which have since been removed from his direct supervision.