Apple is finally letting users reshape Siri. The iOS 27 beta, now in developer testing following its WWDC 2026 debut, introduces a rebranded "Siri AI" built on Apple Foundation Models trained in partnership with Google Gemini. For the first time, users can fine-tune Siri's voice expressiveness and speaking pace, addressing years of criticism about the assistant's robotic rigidity. [1]
Apple Intelligence permeates the entire operating system: it powers one-tap suggested responses in messaging and can generate photorealistic images for wallpapers. The architectural shift runs deeper than the surface. Apple has deprecated the ageing SiriKit framework, replacing it with a new App Intents system that grants developers far richer integration hooks. Notably, iOS 27 supports devices as far back as the iPhone 11, a decision that dramatically widens the addressable base for on-device AI capabilities. The full public release is expected this autumn, and if the beta holds, it could mark the most meaningful upgrade to Apple's assistant since its original launch.