Apple has released iOS 18.1 with Apple Intelligence, a new feature that enhances app functionality. To download the update, iPhone users can go to Settings > General > Software Update and follow the prompts to complete the installation. The update is available for compatible iPhones running iOS 16.5 or later, including the iPhone 16 lineup and the iPhone 15 Pro and Pro Max. Apple Intelligence features include writing tools, advanced Siri features, a Clean Up tool, enhanced search options in Photos app, and notification summaries.

Source: https://www.zdnet.com/article/you-can-download-ios-18-1-with-apple-ai-now-heres-how-and-which-iphone-models-support-it/