Apple Intelligence will only be enabled by default for hardware that supports it. For the iPhone, that's just the iPhone 15 Pro series, iPhone 16 series, and iPhone 16 Pro series. It goes further back on the iPad and Mac—Apple Intelligence works on any model with an M1 processor or newer.

Once a user has installed macOS Sequoia 15.3, iOS 18.3, or iPadOS 18.3 on their device, Apple Intelligence will be automatically enabled on compatible devices.

If you travel to a non-English speaking region, Apple Intelligence will still work, so long as English is the language your Mac is set to use. In the European Union, M-series Macs running macOS Sequoia 15.1 or later can run Apple Intelligence while using a currently supported language.

"For users new or upgrading to iOS 18.3, Apple Intelligence will be enabled automatically during iPhone onboarding. Users will have access to Apple Intelligence features after setting up their devices," the notes for the iOS/iPadOS release candidate to developers reads, spotted by MacRumors.

Anyone who downloads Apple's upcoming software updates will have to take a few steps to disable Apple Intelligence.

Apple’s recent software update, iOS 18.3, automatically activates the Apple Intelligence feature for both new users and those upgrading on eligible devices. The technology, which received integration with Siri and ChatGPT in previous iterations,

According to the release notes for the iOS 18.3 release candidate, the final beta for the latest iPhone update before it goes live in (likely to be a few days), Apple Intelligence

The next big update for your iPhone, iPad, or Mac may automatically turn notification summaries and other AI-powered features unless you go into the settings and switch it off.