RemoveMacAI is a Swift command-line tool that switches Apple Intelligence off on macOS 27 and deletes the on-device models the system has already downloaded. It is for Mac owners who never wanted the feature, who are short on SSD space, or who would rather not keep a set of generative models on the machine — and who are comfortable pasting one line into Terminal. The project is MIT-licensed, was published on 29 September 2026, and has gathered roughly 2,800 stars in its first week.
What it does
The problem it addresses, as the README states it: macOS 27 no longer has a single switch for Apple Intelligence, and the models stay on disk even after the individual features are turned off. So the tool does three things in sequence — it turns the features off, removes the downloaded models, and prevents macOS from downloading them again.
Two subcommands matter before and after the fact. removemacai status lists each feature's model size, so you can see what is actually sitting on your drive before you decide. removemacai revert undoes all of it; the project describes the whole operation as fully reversible.
On the headline number: the channel's own write-up cites Reddit reports of more than 12 GB freed, and AppleInsider's article puts the saving in the same range. That is a user-reported figure, not a benchmark the project publishes, and how much you get back depends on which models your Mac had pulled down. The repository also notes coverage from MacRumors and Help Net Security.
The project states that it makes no network requests and collects no data. That is the author's own claim about the tool, not an independent audit.
How it works
RemoveMacAI is built on pared by 4evy, and the README credits that project with the underlying research: mapping Apple's asset service, the model sets, and the settings keys this tool relies on. RemoveMacAI acts on those keys to disable the features, deletes the matching downloaded model assets, and blocks the system from re-fetching them; status reads the same model sets to report per-feature sizes.
The code is Swift and the repository is MIT-licensed, so the exact commands it issues to your system are readable before you run them — worth doing, given that it edits system settings and deletes Apple-managed files.
Getting started
Requirements are narrow and non-negotiable: Apple silicon only, and macOS 27 only. Intel Macs and earlier macOS versions are out.
Nothing costs money. There is no account, no API key, no subscription and no model to download — the tool removes models rather than running any, so all the work happens on your own machine.
Installation, per the README, is: open Terminal (Applications > Utilities), paste a single curl -fsSL … line and press Return. The copy of the README available for this entry is cut off mid-URL, so take the exact command from the repository itself at github.com/omlahore/RemoveMacAI rather than from any second-hand page, including this one. The repository also includes a terminal recording and a demo video under docs/ if you want to see the run before doing it.
Sensible order once installed: run removemacai status first to see the sizes, then the removal step, and keep removemacai revert in mind as the way back.
When to use it / when not
Use it instead of flipping the Apple Intelligence switches in System Settings when those switches are not enough — they stop the features, but the model files remain on disk and macOS can fetch them again.
Don't use it if your Mac is Intel-based or you are not on macOS 27; that hardware and version limit is the main catch, and it rules out a large share of machines in use. Don't use it either if you actually use Apple Intelligence features and only wanted to trim storage.
One silence worth naming: the materials do not say what a later macOS update does to these changes, so plan to re-check status after you upgrade rather than assume the models stay gone.
Alternatives
The alternative most readers already know is doing it by hand: turning the features off in System Settings. It involves no third-party code, but it leaves the models on disk, which is the entire reason this tool exists.
The other is pared by 4evy, the upstream project RemoveMacAI is built on and credits for mapping Apple's asset service and settings keys. If you want the original research rather than the packaged one-line installer, that is where to look. No other comparable tool is named in the project's materials.
Take this seriously if you run macOS 27 on Apple silicon and either need the storage or simply want Apple's AI stack off your machine: the combination of a status command that shows you the cost up front and a revert command that puts things back makes it an unusually low-commitment thing to try, and the Swift source is short enough to read first. Everyone else — Intel owners, anyone still on an older macOS, anyone who uses the features — gains nothing here. And because it is a young project that edits system settings and deletes system files, reading the install line before you paste it is part of using it properly, not an optional extra.