Why is there a waitlist for Siri AI in iOS 27?

Siri AI requires iOS 27 or iPadOS 27, so your first order of business is to check for pending software updates to make sure you're on the latest version. Open the Settings app and navigate to General Software Update to check, then install as needed. Once that's done, head back into Settings and tap Siri Try Siri AI (Beta). If you don't see the option, try changing your language to English (United States) within the same Siri menu if it's not already. Be sure you have United Stated selected under Settings General Language & Region Region, as well.