Apple Releases iOS 27 and macOS Golden Gate 27 With Siri AI
Apple launches iOS 27 and macOS Golden Gate 27 with Siri AI, AFM 3 models, Liquid Glass controls, broader display support and Rosetta's final Mac cycle.
Summary
Apple released iOS 27, macOS 27 Golden Gate, watchOS 27, visionOS 27 and tvOS 27 on September 14, 2026. Siri AI, an LLM based, context aware overhaul available everywhere except tvOS, can explain onscreen content, search personal history including old emails and texts, and control apps whose developers support it. Apple also added a dedicated Siri app, prompt generated Shortcut automations and Safari extensions, and more photo editing options. Apple Intelligence primarily uses AFM 3 models: the 3 billion parameter AFM 3 Core, plus the sparse 20 billion parameter AFM 3 Core Advanced, which activates 1 to 4 billion parameters per request. Server models include AFM 3 Cloud, ADM 3 Cloud Image and AFM 3 Cloud Pro.
A new slider adjusts Liquid Glass transparency in iOS and macOS, while Golden Gate adds design refinements, systemwide HDR, broader external display modes, and performance and quality improvements. watchOS 27 adds Siri AI, the Siri app, a watch face, design changes, perimenopause and menopause tracking, and more accurate step counting, but removes Walkie Talkie. visionOS 27 adds Siri AI, the Siri app, the Thórsmörk environment, better screen recording and UX changes. tvOS 27 updates Podcasts and Music and offers larger interface text. iOS 27 supports iPhone 11 and later, but Siri AI requires iPhone 15 Pro or iPhone 16 and later. Golden Gate requires an M series Mac and is the final macOS release supporting Rosetta, after which older Intel applications may fail, with an exception for older Intel Mac games.
Positives
- Siri AI can explain onscreen content, search old emails and texts, and control applications with developer support.
- AFM 3 Core Advanced has 20 billion parameters while activating only 1 to 4 billion for each request.
- Liquid Glass transparency controls let iOS 27 and macOS 27 users choose a clearer or more opaque interface.
- macOS Golden Gate adds systemwide HDR and stronger support for external monitor display modes.
- watchOS 27 expands health features with perimenopause and menopause tracking and more accurate step counting.
- visionOS 27 adds the Thórsmörk environment, improved screen recording and Siri AI.
Risks & concerns
- Siri AI requires an iPhone 15 Pro or iPhone 16 and later despite iOS 27 supporting iPhone 11 onward.
- macOS Golden Gate is Rosetta's final release, threatening compatibility for older, unmaintained Intel applications.
- tvOS 27 receives no Siri AI features and focuses on smaller Podcasts, Music and interface changes.
- watchOS 27 removes Walkie Talkie alongside other little used features.
- visionOS 27, watchOS 27 and tvOS 27 are substantially smaller upgrades than iOS 27 and macOS Golden Gate.