Apple's Siri lead explains the AI Siri delay: they scrapped the first version and rebuilt the entire architecture from scratch

项目负责人揭秘为何苹果 AI 版 Siri 姗姗来迟：推倒重来，彻底重构

At a closed-door session after WWDC, Apple revealed they had a working prototype last year—an improved old Siri with tool calling. The team decided it fell short of the product vision, so they scrapped it and rebuilt the entire architecture from scratch on a new large model. The new Siri has a standalone app, native multimodal support, privacy built into the foundation, and runs the same system across iPhone, iPad, Mac, Apple Watch, Vision Pro, CarPlay, and AirPods. Mike Rockwell took over Siri management last year.

Why it matters: Apple's new Siri lead Mike Rockwell disclosed at a WWDC closed-door session that the team scrapped a working prototype built on old Siri with tool-calling, opting instead to tear down the legacy architecture and rebuild Siri as a standalone app on a new foundation model. A rar...