Apple is preparing to let iPhone, iPad, and Mac users choose from competing AI providers, including Anthropic's Claude and Google's Gemini, to handle tasks across Siri, Writing Tools, and Image Playground. The feature, internally called "Extensions," is reportedly slated for iOS 27, iPadOS 27, and macOS 27 in Fall 2026, with a formal announcement expected at WWDC on June 8, 2026, according to Bloomberg reporting summarized by 9to5Mac.