Apple's Upgraded Siri Requires iPhone 15 Pro or Newer, Arrives as Beta This Fall

Two Years Late, But Apparently Worth the Wait

Apple announced Siri AI at its WWDC 2026 keynote, and by most accounts it is the first version of the assistant that actually does what Apple originally promised back when it unveiled Apple Intelligence in June 2024. Engadget went hands-on with the beta and reported that Siri AI handles complex, chained commands and context-heavy queries in ways the existing assistant simply cannot.

Apple has spent two major iOS release cycles shipping Apple Intelligence features that, as Engadget put it, were "sloppy AI features that don't meaningfully improve the iPhone experience." Writing Tools, Priority Mail, and the rest of the first-wave suite landed with a thud. Siri AI is a different story, at least in early testing.

Who Gets It

Only devices compatible with Apple Intelligence will receive Siri AI. According to Engadget, that means every iPhone released since the iPhone 15 Pro, every iPad and Mac running Apple silicon, and the 2024 iPad mini, which shares its SoC with the iPhone 15 Pro.

If you open Settings on your iPhone and see an "Apple Intelligence & Siri" section, your device is on the list. If you do not see it, the upgrade is NOT coming to your phone.

The cutoff is hardware-driven. Apple's most powerful on-device AI models require at least 12GB of RAM, according to Engadget. The iPhone 15 Pro line and newer meet that threshold. Standard iPhone models have not.

Not Everything Ships Equal

Even within the compatible lineup, there are tiers. Engadget reports that iPhone 17 Pro, iPhone 17 Pro Max, and the iPhone Air will run a more powerful on-device model that enables expressive Siri voices, improved speech recognition, and more accurate dictation.

Looking ahead, the upcoming iPhone 18 Pro and the rumored iPhone Fold are expected to carry those same powerful on-device models. The question mark is the base iPhone 18. Analyst Ming-Chi Kuo has reported that Apple is considering bumping non-Pro iPhones to 9GB of RAM, but Apple's own 12GB threshold for its most advanced on-device models means the standard iPhone 18 may still land in a second tier, if it qualifies at all.

The Privacy Architecture

Apple is again leaning on Private Cloud Compute for prompts too complex to handle on-device. The architecture, introduced with the original Apple Intelligence rollout in 2024 per Apple's own press materials, routes heavier workloads to Apple silicon servers while claiming the data remains inaccessible to anyone other than the user.

Simpler, personal requests—those drawing on your notes, messages, emails, and photos—are handled by Apple Foundation Models stored locally on the device, which should mean faster responses and no data leaving your phone for routine queries.

The Opt-In Beta Wrinkle

Siri AI will NOT roll out automatically to every eligible device. According to Engadget, Apple plans to release it as a beta initially, and users will likely need to manually opt in to access Siri AI, much like those testing the iOS 27 developer beta had to hop on a waitlist.

That means even if you own an iPhone 15 Pro and install iOS 27 this fall, you may not get the new Siri on day one without actively seeking it out.

The Fair Concern from the Other Side

Some observers will reasonably argue that Apple's hardware gating here is less about technical necessity and more about driving upgrade cycles. If the new Siri runs on a 2023 iPhone 15 Pro but not a 2022 iPhone 14 Pro, one could ask whether the performance gap genuinely demands that cutoff or whether Apple is drawing the line in a commercially convenient place. That is a legitimate question. Apple's answer, implicit in its 12GB RAM requirement, is that the on-device model size makes older hardware genuinely insufficient. The company has not published detailed benchmarks to independently verify that claim, so it remains an assertion rather than a proven technical constraint.

iOS 27 Compatibility Is Broader Than Apple Intelligence

One thing that does NOT change: iOS 27 itself is compatible all the way back to the iPhone 11, according to Engadget. So older iPhone owners will receive the new operating system. They just will not receive Siri AI or the Apple Intelligence suite that requires the more powerful silicon.

What Happens Next

The stable release of iOS 27 is expected this fall, with Siri AI shipping as a beta alongside it. Whether Apple expands that beta broadly at launch or staggers access the way it did with earlier Apple Intelligence features has not been specified. Given Apple's track record over the past two years of phased and delayed rollouts, the sequencing question matters most going forward.