Question of the Day
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When AI features require 12GB RAM, what becomes the real boundary between iPhone “tiers”?
Take-away AI tiering tracks the on-device memory footprint: once inference+context won’t fit, features become a hard “RAM gate,” not a soft spec difference.
The real boundary between iPhone "tiers" is primarily set by the amount of RAM, specifically the requirement of 12GB RAM to support advanced AI features in iOS 27. Lower-end models like the iPhone 18 and 18e, which come with 9GB RAM, are unable to access these features, which include Siri expressiveness customization and improved speech-to-text accuracy [2]. In contrast, higher-end models such as the iPhone 18 Pro, 18 Pro Max, and possibly the iPhone Ultra come with 12GB RAM and thus can support these advanced features [1], [2]. This RAM distinction creates a clear boundary between the different tiers of iPhones, with the 12GB RAM of high-end models allowing them to fully utilize Apple's new AI capabilities [1], [2].