you don't trust it, ever. You verify it, as in you get PR from junior / new contributors. You also need to not trust any source on the internet before validating it, Wikipedia for example.

Why you can trust wikipedia but not AI? That's because the source inside it has been verified by many people. So if you're faced with a new page in Wikipedia that hasn't been verified much, you need to treat it same as AI, verifying it yourself by crosschecking it with other sources.