Apple WWDC 2026 Preview — Gemini-Powered Siri Overhaul in iOS 27, Third-Party AI Integration

Tom's Guide·medium signal

Apple's WWDC 2026 keynote on June 8 will unveil a completely rebuilt Siri powered by Google Gemini running on Apple's Private Cloud Compute, with a standalone chatbot-style app capable of interacting with on-screen content. iOS 27 will let users set third-party AI services (Claude, Gemini, ChatGPT) as defaults for Writing Tools and Image Playground. Apple registered genai.apple.com on May 23 — its first use of 'GenAI' as a public label. This effectively opens Apple's 2B+ device ecosystem to competing AI backends.