You can also check the sources of LLMs, just ask them for it, and then check that. An LLM is simply more flexible and more powerful than Wikipedia, and thus you have to be more cautious with regards to its results.

"Generally right" is not the same as "reliably right", and therefore if you really need to rely on a fact for something important, I would trust neither Wikipedia nor LLMs.

> LLMs are often wrong and you cannot check their sources.

Depends on which LLM you are using, perplexity and copilot both cite their sources.