Craig Federighi Details Apple's Collaboration with Google for Siri AI in iOS 27
Key Takeaways
- ▸Apple's iOS 27 Siri features deeply integrated AI powered by third-generation Apple Foundation Models, developed in collaboration with Google
- ▸Google collaboration focuses on foundation models only; Apple does not use Gemini, Google's models, infrastructure, or Google Search
- ▸Privacy architecture uses on-device processing for simple requests and Private Cloud Compute for complex queries, with strict guarantees that data is never stored or accessible
Summary
Apple's Siri team, led by SVP Craig Federighi, unveiled significant AI enhancements to Siri in iOS 27 during a post-WWDC technical briefing. The new Siri leverages a deeply integrated AI architecture across Apple's ecosystem, with the assistant emerging from the Dynamic Island's Liquid Glass interface and seamlessly incorporated into Writing Tools, context menus, and system-wide features. The improvements are powered by Apple's third-generation Foundation Models, which were developed in collaboration with Google.
Federighi emphasized that Apple's collaboration with Google focuses specifically on foundation model development, while clarifying what Apple does not use from Google. Notably, Apple does not adopt Gemini's client code, Google's deployed models, Google's infrastructure, Google Search as a knowledge base, or any Google Assistant technology. Instead, Apple has built a proprietary system centered on privacy and on-device processing.
The Siri system architecture leverages a "System Orchestrator" that coordinates requests across multiple components, including the App Toolbox for app actions, Spotlight Semantic Index for personal content, and on-screen context understanding. For simple requests, on-device models handle processing entirely locally. For more complex queries, the System Orchestrator routes requests to Apple's Private Cloud Compute infrastructure, which extends iPhone-level privacy protections into the cloud—ensuring user data is never stored, never accessible to Apple, and verified by third-party researchers.
Apple's approach demonstrates a privacy-first AI strategy where advanced AI capabilities are achieved through proprietary foundation models rather than reliance on external cloud infrastructure or competitor technology. The third-generation Apple Foundation Models (AFM Cloud, AFM Cloud Pro, AFM Fusion, and image models) represent the core of Apple's AI innovation in Siri.
- System Orchestrator coordinates AI requests across app actions, personal content indices, and on-screen context to deliver intelligent assistance



