RemoveMacAI strips Apple Intelligence models from macOS 27

A new open-source tool called RemoveMacAI turns off Apple Intelligence on Macs running macOS 27. It also deletes the AI models Apple stores on the machine and stops macOS from downloading them again. GBHackers reported the tool on October 5, 2026. It is aimed at people who have switched Apple Intelligence off but still have its models taking up space on their drives. Its README sums it up: it "turns the features off, removes the models and prevents macOS from downloading them again."

What Apple Intelligence leaves behind

Apple Intelligence is Apple's set of AI features built into its operating systems. Much of it runs on the Mac itself, using AI models that macOS downloads and keeps on the drive. RemoveMacAI is built to delete those files as well as switch the features off.

Neither source gives a figure for how much storage the models use. The project's documentation notes one quirk after removal. Storage settings may still list Apple Intelligence for a short time, because macOS schedules the files for deletion rather than removing them at once.

How RemoveMacAI works

The tool runs from the command line, the text-based Terminal app on a Mac. According to its GitHub repository, a run goes through four steps:

1. It shows the current state of Apple Intelligence on the Mac and asks you to confirm.
2. It opens System Settings so you can install a configuration profile.
3. It removes the downloaded AI models.
4. It blocks new downloads of those models.

A configuration profile is a settings file that macOS applies system-wide. Companies normally use them to manage fleets of Macs. RemoveMacAI's profile uses Apple's own restriction keys to switch the features off, GBHackers reports.

The download block works in an unusual way. The profile points each removed model's download at a closed port on the Mac itself, a network address where nothing answers. "Redirects the download of each removed model to a closed local port, so macOS does not download it again," the documentation says.

What stops working

RemoveMacAI switches off more than one feature. GBHackers lists these:

Feature	What it does normally
Siri	Apple's voice assistant
Writing Tools	Rewrites and proofreads text
Genmoji	Creates custom emoji from a description
Image Playground	Generates images from prompts
Visual Intelligence	Identifies what the camera or screen shows

The repository adds two more side effects. Natural-language editing in Calendar stops working. Third-party apps that rely on Apple's on-device models also stop working.

GBHackers notes that the tool "intentionally disables features that some users or managed workflows may require."

Requirements and how to undo it

Item	Detail
Hardware	Apple silicon Macs only
macOS	macOS 27; tested on 27.0 and 27.0.1
Older macOS	macOS 26 and earlier are not supported
Version for 27.0.1	RemoveMacAI 0.2.3 or later
Install	Homebrew, or a one-line installer with a SHA-256 checksum check
License	MIT
Undo	removemacai revert reverses every change

Homebrew is a popular package manager for installing developer tools on a Mac. A SHA-256 checksum lets the installer confirm that the downloaded file has not been altered.

What this means for developers

If you manage Macs for a company, you can already push the same restriction keys through your device management system. RemoveMacAI shows a second step that most policies skip: deleting models that are already on the drive and blocking their return. Test it on one machine before you copy the approach.

If your app uses Apple's on-device models, expect some users to remove them. RemoveMacAI makes that easy, and once it has run those apps stop working. Check whether the models are available before you call them. Show a clear message, or fall back to another option, when they are missing.

If you try the tool yourself, read what it disables first. Siri, Writing Tools and Visual Intelligence all go dark. Install through Homebrew or the checksum-verified installer, and keep removemacai revert in mind in case you want the features back.

Watch for Apple's response. The tool depends on macOS 27's current behavior, and it already needed version 0.2.3 to support macOS 27.0.1. A future macOS update could break it again.