You enabled Apple Intelligence, you updated to a version of macOS that supports it, and yet the ChatGPT option for Siri is nowhere to be found. The reason almost everyone gets stuck is simple: the setting does not live inside the ChatGPT app, and it is not under a menu labelled ChatGPT either. It sits a few clicks deep in System Settings, and once you know the exact path it takes about ten seconds to switch on.
Quick Answer
The ChatGPT toggle for Siri on a Mac lives at System Settings, then Apple Intelligence and Siri, then Extensions, then ChatGPT. It is not inside the standalone ChatGPT app. Navigate straight to that path on a supported Mac and flip the switch to activate it.
The Exact Path
Open System Settings from the Apple menu or the Dock. In the sidebar, find Apple Intelligence and Siri. Inside that panel, look for the Extensions section, and within Extensions you will see a ChatGPT entry. Open it, turn it on, and confirm. That is the whole journey, and the only place the option is exposed.
If you went hunting in the ChatGPT app's preferences first, you are not alone, because that is the intuitive guess. The integration is an Apple Intelligence extension, though, so Apple keeps the control in its own settings rather than handing it to the third-party app.
Why It Is Tucked Away There
Apple treats ChatGPT as one of several optional extensions that Apple Intelligence can call on when a request goes beyond what its on-device model handles. Grouping it under Extensions keeps every external assistant in one consistent place, and it lets you toggle the connection without uninstalling anything. The trade-off is discoverability, which is exactly why this question comes up so often.
What You Need First
A few things have to line up before the option appears at all. Your Mac must be a model that supports Apple Intelligence, which means recent Apple silicon. Apple Intelligence itself must be turned on. And you need a macOS version recent enough to include the feature. If any of those is missing, the Extensions section will not show a ChatGPT entry, and no amount of searching the ChatGPT app will surface it. Buyers comparing which models qualify can check the current lineup in the MacBook range at Evetech to confirm a machine is Apple silicon before they buy.
After You Enable It
Once switched on, Siri and the writing tools can hand off appropriate requests to ChatGPT, usually asking for your confirmation first. You can sign in to a ChatGPT account for higher limits or leave it on the free tier. The control to turn it back off lives in the same Extensions panel, so you are never locked in.
If you are shopping for a Mac specifically to use these features, the laptop best sellers are a fast way to see which current models are moving and which carry the Apple silicon that the feature requires.
Frequently Asked Questions
Why can't I find the ChatGPT option in the ChatGPT app on my Mac?
Because it is not there. The toggle is an Apple Intelligence extension, so it lives in System Settings under Apple Intelligence and Siri, then Extensions, then ChatGPT.
What is the exact path to enable it?
System Settings, then Apple Intelligence and Siri, then Extensions, then ChatGPT. Open that entry and switch it on.
Why doesn't the ChatGPT extension appear at all on my Mac?
The most common reasons are an unsupported Mac model, Apple Intelligence not being enabled, or a macOS version too old to include the feature. All three must be in place.
Do I need a paid ChatGPT account to use it?
No. You can use the integration on the free tier, and signing in to an account simply raises your usage limits.
Can I turn the integration off again later?
Yes. The same Extensions panel where you enabled it also lets you switch it off whenever you want, without uninstalling anything.
Shopping for a Mac that runs Apple Intelligence and the ChatGPT integration out of the box? Browse the current MacBook range at Evetech to find an Apple silicon model that supports the feature.