After you upgrade your iPhone to iOS 27, you might notice your device doing a little extra thinking. That’s because the update brings a revamped Search system to your device, and it needs some time to get to know everything on your iPhone.

Apple is updating the brains inside the iPhone. Here are the biggest changes in iOS 27, which launched on Monday.

Siri has been rebuilt from the ground up with powerful AI, taking full advantage of the bold new architecture for Apple Intelligence. Additionally, Siri AI uses the system orchestrator to tap into core capabilities like the Spotlight index and App Toolbox, which work entirely on device to keep users in control of their data.

Apple released iOS 27 this week, and despite the company's focus this year on refining its flagship operating system and nixing bugs, there are still many additional features to explore, not least of which is Apple's new context-aware Siri,

OS 27 is now available for supported iPhones, with Siri AI, faster performance, Liquid Glass refinements, improved parental controls, and new features across Apple’s apps.

From side-by-side app integration to dedicated conversation histories, here's how Siri AI in iOS 27 bridges the gap between voice controls and a desktop-grade experience assistant.

You can try the new AI assistant now.