Apple Intelligence is here, as part of the iOS 18.1 developer beta

Engadget 

Don't call it AI, but Apple's long-awaited take on artificial intelligence is finally rolling out today. The developer betas for iOS 18.1, iPadOS 18.1 and macOS Sequoia 15.1 just dropped, and they include some of the first Apple Intelligence features available to a broader, public group of testers. To be clear, this isn't the full release that was rumored to be delayed till October. These updates are part of an early preview for developers to test. Starting today, those with Apple developer accounts will be able to update their software and go into their settings to see a new option for Apple Intelligence.