At WWDC 2026, Apple showed what its most advanced on-device artificial intelligence model is capable of. The list turned out to be shorter than the hardware requirements suggested: two new Siri AI capabilities require 12 GB of RAM, and the standard iPhone 17 with its 8 GB simply can’t handle them. The good news is that the first beta version of iOS 27 is already available for anyone to install, so you can check the situation on your smartphone today.
A couple of features didn’t make it to the base iPhone 17
What Won’t Work in Siri AI on iPhones with 8 GB of RAM
In its announcement, Apple clarified that the most powerful on-device model is responsible for just two things. The first is more expressive Siri voices. You can customize the expressiveness and speech tempo of the assistant to suit your preferences, so it sounds less like a robotic textbook reader and more like something that’s comfortable for you personally.
You won’t be able to customize the voice on iPhone 17
The second capability is far more noticeable in daily use — it’s improved dictation, meaning voice-to-text input across the entire system. The model converts speech into polished text on the fly: it automatically adds capitalization, punctuation, and paragraphs, while also recognizing words more accurately, resulting in fewer errors.
Dictation will remain basic
Previously, after dictation you had to manually proofread and clean up the result — now the system takes care of that routine for you.
How iPhone 17 Differs from iPhone 17 Pro
Both features only activate when 12 GB of unified memory is available. Among current smartphones, only the iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max meet this requirement. From other devices — iPads with the M4 chip and later, Macs with M3 and later, as well as Apple Vision Pro with the M5 chip.
The main difference between iPhone 17 and iPhone 17 Pro
The standard iPhone 17 didn’t make the list. It only has 8 GB of memory — exactly the minimum that Apple Intelligence has required since its launch. Interestingly, this is the first time the bar has been raised: until now, 8 GB was sufficient since AI features first appeared on iPhones two years ago. Now model sizes have grown, and the base configuration no longer has enough headroom for the most demanding scenarios.
Siri AI Features That Work on the Standard iPhone 17
It’s important not to panic here: the 12 GB requirement applies not to all of Siri AI, but only to voice quality and dictation accuracy. Everything else works without limitations on a broader list of devices with Apple Intelligence. This includes:
- personal context awareness — Siri remembers what you’ve asked before
- understanding what’s shown on screen
- answering questions from the internet
- a dedicated Siri app
- Visual Intelligence — search and suggestions based on what the camera sees
- text editing tools (Writing Tools)
This set remains available on iPhone 15 Pro, the entire iPhone 16 lineup, and iPhone 17. So owners of the base model will get the new chatbot-style assistant with iOS 27 — just with the old voices and slightly less accurate dictation.
How Siri AI Works with Gemini in iOS 27
The main highlight of the update isn’t voices or dictation, but how Siri now thinks. The assistant hands off some complex queries to a large language model, and at the core of this integration is Gemini from Google. It’s what helps Siri carry on conversations, maintain context, and give detailed answers rather than dry templates.
For users, this means one thing: the assistant has become noticeably smarter in everyday tasks — from planning your day to searching through personal data.
Is It Worth Upgrading from iPhone 17 to iPhone 17 Pro for Siri AI
How critical the absence of two features is depends on your habits. For those who dictate all day long, more accurate transcription will come in handy right away: fewer edits, cleaner text straight out of the box, no need to fix commas after every message.
It’s definitely not worth swapping an excellent and reasonably priced iPhone 17 for a Pro because of these features
For everyone else, the difference will most likely remain almost unnoticeable. The old Siri voices and standard dictation work fine, and the absence of two new features doesn’t make the iPhone 17 worse than it was at launch.
Currently, iOS 27 is available as a developer version. The public beta will come out next month, and the final release for everyone — in the fall, following Apple’s traditional schedule. Upgrading from a standard iPhone 17 to a Pro just for expressive voices and improved dictation doesn’t make much sense — these are nice but narrow features, and they’re not worth the extra cost. The base model gets nearly the full Siri AI package anyway.
That said, if you genuinely dictate a lot — composing work emails by voice, writing long notes, capturing ideas on the go — then accurate dictation could tip the scales toward iPhone Air or Pro for your next purchase. But there’s no need to rush to the store because of an iPhone 17 you’ve already bought: wait for iOS 27 and see if you really miss these two specific features.
