Let's be honest, most sources online are not 100% accurate. Even before LLMs, find any random article about something you're an expert in, and there was a good chance you'd spot some inaccuracies. Most of the time, those inaccuracies aren't a big deal, and when they are, you should be consulting an expert for those.

For me personally, I would rate AI accuracy at about 75%. And for some of my use cases, that's a pretty decent starting point. Things with no consequences, like trying to quickly find the relevant console command for the game I'm playing. I can get instant feedback on whether it gave me correct info, and if not then I hit Google.

I would never trust AI, at least in its current state, to tell me the truth for anything of consequence.