Sources: Robby Walker, one of Apple’s most senior AI executives who was in charge of Siri until earlier this year, is leaving the company next month (Mark Gurman/Bloomberg)

Mark Gurman / Bloomberg:
Sources: Robby Walker, one of Apple's most senior AI executives who was in charge of Siri until earlier this year, is leaving the company next month  —  Apple Inc.'s Robby Walker, one of the iPhone maker's most senior artificial intelligence executives, is leaving the company, according to people with knowledge of the matter.