Apple AI and Search Executive Robby Walker to Leave Company

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.

Walker, who’s one of a few direct reports to AI chief John Giannandrea, was in charge of Siri until earlier this year — before oversight of the voice assistant was shifted to software chief Craig Federighi. That move came after promised changes to the feature were publicly postponed, marking a high-profile setback.