This may shock you, but wikipedia provides multiple sources, it even links to them. Where do you think the LLMs are getting their data from?

To further this, articles also have an edit history and talk page. Even if one disagrees with consensus building or suspects foul play and they're really trying to get to the bottom of something, all the info is there on Wikipedia!

If one just wants a friendly black box to tell them something they want to hear, AI is known to do that.