Apple has finally unveiled its long-awaited AI-powered Siri at WWDC 2026, giving its voice assistant the biggest upgrade since it first launched in 2011.Called "Siri AI," the new assistant is powered by Apple's next-generation Apple Intelligence platform and promises more natural conversations, better understanding of user requests and deeper integration across apps.Also Read: Apple WWDC 2026: Siri gets an AI makeover, its biggest upgrade since 2011 debutHere's everything you need to know about Siri AI, including supported devices, how to access it and when it will be available.What is Siri AI?Siri AI is Apple's revamped digital assistant built on new Apple Foundation Models developed with support from Google's AI technology.Unlike the older Siri, which was limited to basic commands and web lookups, the new version is designed to be more conversational and context-aware. It can understand follow-up questions, surface information from apps and provide richer responses that include maps, reminders, music, web results and other actions.Apple says privacy remains at the core of the experience, with user data not being stored by the company.How to access Siri AIApple has introduced a dedicated Siri app as part of the redesign.Users can access Siri AI through:The new Siri appExisting Siri voice commandsBy swiping down from the Dynamic Island on supported iPhonesWhen activated, Siri appears through Dynamic Island and can display richer responses and suggested actions.Which devices support Siri AI?Apple has confirmed that iOS 27 will be available for iPhone models going back to the iPhone 11.However, Apple has not yet provided a detailed list of devices that will support all Siri AI features.Historically, Apple Intelligence features have required newer Apple Silicon hardware because many AI tasks run directly on-device. Apple is expected to share additional compatibility details as developer and public beta versions roll out.Also Read: As Apple's WWDC conference kicks off, investors want to know if AI will save SiriAs of now, users with iPhone 11 and newer devices will be able to install iOS 27, though some advanced Siri AI features may be limited to newer hardware.Is Siri AI available now?No.Apple announced Siri AI during WWDC 2026, but the feature is expected to roll out first through developer beta releases later this year before becoming available to the public alongside iOS 27 in September.The company has not yet announced an exact public release date.What's new in Siri AI?Some of the biggest upgrades include more natural, chatbot-like conversations, a better understanding of context and follow-up questions, a dedicated Siri application and Dynamic Island integration. Apple says Siri AI can also deliver richer responses that incorporate maps, reminders and media, while offering deeper integration across apps, improved privacy protections and new AI models developed with Google's technology.