Siri AI rolls out to select Apple devices as compatibility splits across iPhone models

Reviewed byNidhi Govil

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Apple unveiled Siri AI at WWDC 2026, promising conversational abilities and contextual awareness. But the upgraded AI-powered Siri comes with hardware restrictions that leave some recent iPhone buyers frustrated. Only devices with sufficient memory can access advanced features like voice customization and improved dictation.

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Siri AI Brings Major Upgrade But Not to All Apple Devices

Apple introduced Siri AI at its WWDC keynote this week, marking a significant overhaul of its virtual assistant that promises to deliver conversational abilities, contextual awareness, and natural language understanding

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. The upgraded AI-powered Siri can engage in open-ended conversations, understand what's on your screen, and run tasks across apps and files. Available with iOS 27, the new Siri AI features represent Apple's attempt to compete with other AI-powered chatbots, but hardware compatibility has become a contentious issue

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The Siri AI compatibility list reveals a tiered system based on device capabilities. All Apple devices with Apple Intelligence support can access the basic version, including iPhone 15 Pro and newer models, iPads with M1 chip or A17 Pro, and Macs with M1 chip and later

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. This means iPhone 16 series, iPhone 17 series, and select iPad and Mac models will support the new Siri AI features when it launches this fall

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iPhone Compatibility Creates Two-Tier Experience

The iPhone compatibility situation is more complex than initially presented. Apple Intelligence features rely on two distinct on-device AI models: AFM 3 Core and AFM 3 Core Advanced, where AFM stands for Apple Foundation Models

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. The advanced model requires at least 12GB of unified memory, limiting full access to iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air

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Devices with only the basic AFM 3 Core model include iPhone 17, iPhone 17e, the entire iPhone 16 lineup, and iPhone 15 Pro models. These devices can still access most new Siri AI features but miss out on two specific capabilities: voice customization that adjusts expressiveness and pace, and advanced system-wide dictation that automatically adds punctuation and formatting as you speak

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Real-World Performance Shows Promise

Early testing reveals impressive capabilities for the AI-powered Siri. One user with iOS 27 developer beta access tested Siri AI with complex Apple Music queries, asking it to "play songs from the Lover album that were part of The Eras Tour setlist"

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. The virtual assistant correctly identified all five songs and created a playlist on command. Siri AI also demonstrated extensive knowledge by accurately answering questions about recent events and specific concert details, showing its ability to access emails, calendars, and messages for contextual responses

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This context-awareness represents a stark difference from previous versions that struggled with anything beyond basic commands. The on-device processing combined with cloud-based AI models enables natural language understanding that finally unlocks the potential Apple has promised for years

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Limited Exclusivity Sparks Debate

Despite social media complaints about features being locked to newer hardware, the actual limitations appear minimal for now. Only voice customization and advanced dictation require the AFM Core Advanced model with 12GB RAM

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. Apple already offers 19 preset Siri voices covering different nationalities, accents, and genders, making voice customization less critical

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However, this situation may evolve as more advanced on-device AI models require additional resources. Future iOS updates could introduce features exclusively for devices with 12GB RAM or more, similar to how Apple Intelligence wasn't available on iPhone 15 or older models

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. The hardware requirements suggest Apple is preparing for increasingly sophisticated AI capabilities that demand more processing power and memory.

Siri AI enters developer beta testing today and will launch to the public this fall with iOS 27, though it will retain a "beta" label even after general release

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. The feature won't be available in the EU on iOS 27 at launch due to Digital Markets Act regulatory concerns

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