Apple's Most Advanced On-Device AI Model Restricted to iPhone 17 Pro and iPhone Air

*Apple's next-generation on-device AI in iOS 27 requires 12GB of unified memory and will not run on the base iPhone 17.*

Apple announced at WWDC that the most capable model in its updated Apple Intelligence suite demands hardware with at least 12GB of unified memory. The base iPhone 17, which ships with 8GB, is excluded.

Most new AI features in iOS 27 continue to run on existing devices, including the iPhone 15 Pro. Only the single most powerful on-device model carries the stricter requirement. The model is described as more powerful than any Apple has shipped before.

Supported Devices

The devices that meet the threshold are:

• iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max
• iPads with M4 or later chips that include 12GB of unified memory
• Macs with M3 or later chips that include 12GB of unified memory
• Apple Vision Pro with the M5 chip

Apple has not disclosed further technical details of the model itself.

Reactions and Context

The sources report the same hardware split without disagreement. Earlier Apple Intelligence features launched with support for iPhone 15 Pro and equivalent silicon. The new cutoff marks the first time Apple has drawn a line between its flagship phones and a standard model for on-device AI capability.

Why It Matters

The decision keeps the heaviest inference workloads on devices with larger memory pools, preserving battery life and thermal headroom on thinner or lower-cost hardware. Users who want the full set of on-device features will need to step up to the Pro or Air models. The rest of iOS 27's AI tools remain available on older hardware, so the practical impact depends on how many experiences Apple ties to the new model in the coming months.

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Sources:

• 9to5Mac
• MacRumors

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