MacBook Pro M3 OS 15.1 stuck "preparing" Apple Intelligence

For everyone here looking for answers, I stumbled onto a possible solution here.

First and foremost, you must establish a connection to a WiFi network 🛜, not simply a mobile hotspot.

If Apple Intelligence is stuck on your iPhone:

1. Open Settings ➢ General ➢ iPhone Storage.
2. Scroll to the bottom and tap ⚙️ iOS.
3. Apple Intelligence should be fully downloaded if it reads: 2.56 GB.

If Apple Intelligence is stuck on your Mac:

1. Open Settings ➢ General ➢ Storage.
2. Scroll to the bottom and double-click ⚙️ macOS.
3. Apple Intelligence should be fully downloaded if it reads: 4.94 GB.

Now, go directly to Settings ➢ Apple Intelligence & Siri and you should find the prompt or switch to toggle on Apple Intelligence.

Please provide any feedback if this has helped so we can all learn from this.

Good Luck! 👋🏼😉

same bug, tried changing Siri language but it still says ‘preparing’. is there any way to reinstall Apple Intelligence?

Same problem

Check your language preferences inside Siri in Apple Intelligence in settings. Try to setting it to US English if you're unable to change it, then change it to UK English and then back to US English that worked for me.