# Apple's iOS 18 Update: A New Era for iPhone Users
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Chapter 1: Anticipating iOS 18
This autumn, iPhone users are gearing up for the release of a significant update. However, the enthusiasm may be moderated as Apple intends to enforce a notable distinction by limiting access to a crucial feature of iOS 18 to certain iPhone models.
The primary emphasis of iOS 18 will be on a range of artificial intelligence capabilities, as Apple strives to keep pace with competitors such as Google and Samsung in the AI landscape.
According to insider Mark Gurman from Bloomberg, not every iPhone user will gain access to the new AI functionalities. While all devices compatible with iOS 17 are eligible for the iOS 18 update, only a select number of models will be equipped to utilize all AI features.
At the heart of these enhancements lies a reimagined Siri, which Apple plans to develop using its proprietary Large Language Model (LLM), a core algorithm essential for generative AI. The AI features will be divided into two categories: fundamental and advanced. Basic functionalities will operate locally on the device, while advanced features will rely on cloud connectivity. The basic capabilities, powered by Apple's LLM, will demand newer hardware, specifically an iPhone 15 Pro or higher. Unfortunately, other models that support iOS 18, including the standard iPhone 15 and iPhone 15 Plus, will not have access to these essential AI features.
Section 1.1: The RAM Limitation
The available RAM could be the primary constraint, rather than the chip itself. All iPads and Macs equipped with at least an M1 chip will be able to utilize AI features directly on the device, owing to their standard minimum of 8 GB of RAM, unlike the 6 GB available in iPhones. Large Language Models necessitate a significant amount of RAM due to their extensive parameters, presenting Apple with hardware challenges.
As a result, potential iPhone purchasers may want to consider the iPhone 15 Pro or iPhone 15 Pro Max to avoid being relegated to a secondary status among iPhone users.
The first video explores over 100 new features of iOS 18, detailing how they will enhance user experience and functionality.
Section 1.2: Apple's Broad Vision
Apple’s ambition extends beyond just the iPhone. The company is expanding OLED technology to the iPad Pro, with plans for the MacBook Pro to follow. This move could significantly change the landscape of Apple devices by 2026.
Chapter 2: The Future of iPhone
In this follow-up video, the latest features, applications, and more from iOS 18 Beta 2 are discussed, highlighting the advancements in Apple's ecosystem.
As iOS 18 is set to launch in the fall following its preview at June's WWDC, the new AI functionalities for Siri are anticipated to be fully refined over the next year, as Apple requires additional time for their completion.