How to Remove Apple Intelligence From iPhone (iOS 27)

You cannot fully remove Apple Intelligence from an iPhone on iOS 27: there is no button that deletes it. You can turn its features off, starting with Siri AI, but Apple does not say that this gives the storage back. Apple puts the space at up to 8 GB on most supported iPhones and up to 14 GB on the iPhone 17 Pro models, iPhone Air and iPhone Duo.

How do I turn Apple Intelligence off on iOS 27?

iOS 26 had one Apple Intelligence switch. In iOS 27 it is a set of separate settings. Apple lists them on Turn off and restrict access to Apple Intelligence features on iPhone:

1. Open Settings and tap Siri.
2. Scroll down, tap Turn Off Siri, then tap Turn Off Siri again to confirm.
3. To keep the old assistant, tap Turn on Siri, then Siri Classic. That is Siri without the AI.
4. Go to Notifications and turn off Summarize Notifications and Prioritize Notifications.
5. Go to Apps. Under Messages, turn off Summarize Messages. Under Mail, turn off Summarize Message Previews.

To lock it, go to Screen Time > Content & Privacy Restrictions > Siri. Then choose Siri (Classic Version) or Don't Allow Siri.

Does turning off Apple Intelligence save storage?

Don't count on it. Apple's Apple Intelligence requirements page gives the storage figures. It says use can go above them for a while after a software update, while new models download and old ones are removed. Apple's pages say nothing about deleting the models or getting the space back. People on Apple's own forums report that the space stayed used after they turned the features off.

What actually frees space instead?

1. Go to Settings > General > iPhone Storage and start with the recommendations at the top.
2. Tap a large app and choose Offload App. This frees the app's own space but keeps its documents and data (Apple's storage guide).
3. Delete apps you no longer use. This frees the most, but their data goes too.

If it is your Apple Watch that is full, see Apple Watch storage: how much fits.

Frequently asked questions

Q: Is Siri Classic the same as turning Apple Intelligence off? A: It turns off Siri AI only. Summaries and priority notifications have their own switches, listed above.

Q: Will an iOS update turn it back on? A: Check after each update. Apple says storage use can rise during an update while new models download.

Q: My iPhone is not on Apple's list. Does it use the space? A: Apple Intelligence on iOS 27 needs an iPhone 15 Pro, iPhone 15 Pro Max or an iPhone 16 or later, so other models never get it.