Updated Your Mac? Apple Intelligence May Have Quietly Taken 20GB or More of Storage
Apple Intelligence was supposed to make the Mac smarter. On some Macs running macOS 27, it is also making the available storage noticeably smaller. “Up to 14 GB of storage on device for … Mac models with M3 and later and at least 12GB of unified memory,” Apple says in its Apple Intelligence system requirements.
Other compatible Macs are listed at up to 8GB. Yet fresh installations of macOS 27 have produced Apple Intelligence storage readings above 20GB, with one user reporting more than 30GB.
“AI model storage allocation appears to be considerably higher on some Macs than others,” MacRumors reported after finding 20.67GB allocated to Apple Intelligence on an M4 Pro Mac mini. An M1 MacBook Air and a MacBook Neo also showed around 14GB, despite falling into the category for which Apple lists up to 8GB.
| Mac Model | Processor / Memory | Apple Official Spec | Real-World System Storage Reading |
|---|---|---|---|
| Mac mini | M4 Pro | Up to 14GB | 20.67 GB |
| MacBook Air | M3 | Up to 14GB | 22.42 GB |
| MacBook Air / Neo | M1 / Entry | Up to 8GB | ~14.00 GB |
| MacBook Pro | M3 Pro | Up to 14GB | 24.35 GB |
| Mac (RC Build) | High-Tier Config | Up to 14GB | 30.16 GB |
The numbers matter because Apple has also removed an important escape hatch. In earlier macOS releases, users could turn off Apple Intelligence and delete the downloaded models. macOS 27 no longer provides a master switch for removing those models.
“After you install macOS 27 Golden Gate, Apple automatically downloads a multi-gigabyte AI model to your Mac the next time it’s connected to the internet,” MacRumors reported. The publication also found that users cannot prevent the download in macOS 27.
That does not mean every Apple Intelligence feature has to be used. It means the underlying on-device models occupy space even if a user has little interest in Siri AI or Apple’s other generative features.
Specs Say 14, Storage Says More
Apple’s published figures and the storage readings now appearing on some Macs are not directly explained by the company’s documentation. The discrepancy is particularly noticeable on newer machines.
Apple’s up-to-14GB figure applies to Macs with M3 or newer chips and at least 12GB of unified memory, which includes the M3 MacBook Air where Ars Technica saw 22.42GB. Meanwhile, the M1 MacBook Air and MacBook Neo reportedly showed around 14GB despite being in Apple’s up-to-8GB category.
Comapny has not explained why the Storage panel can show substantially more than its stated requirement. It is also unclear from Apple’s documentation whether the published 8GB and 14GB figures are measuring exactly the same thing as the Apple Intelligence category shown in System Settings.
A larger storage allocation does not necessarily mean Apple has permanently filled the drive with a single model file of that exact size. But for the person looking at a Mac with 256GB of storage, the distinction does not make the missing space any less real. A reported 30.16GB allocation would represent almost 12% of a 256GB drive.
How To Check Your Mac
If your available storage dropped after installing macOS 27, Apple Intelligence is worth checking before deleting apps or moving personal files.
Open System Settings → General → Storage and look at the macOS entry. Clicking the information button beside macOS can reveal the Apple Intelligence allocation.
The issue is especially relevant for Macs with smaller SSDs. Losing 20GB on a 2TB machine is inconvenient. Losing the same amount on a 256GB machine can affect how much room remains for photos, video projects, games, development tools and system updates.
“Apple Intelligence uses on-device processing and Private Cloud Compute to help protect users’ privacy,” Apple said when introducing its next-generation Apple Intelligence architecture. For macOS 27 users, that “somewhere” is the Mac’s internal storage, and Apple has decided that the models are part of the operating system whether or not the owner plans to use them.
