You shouldn't use systems of this sort to ask questions and then believe the answer. You shouldn't believe any answer by anyone, let alone an AI system, unless it's a reputable source or the answer contains a good argument or you can verify it.

AI language models are useful for exactly that: modelling language. For example, they can change the style of writing of a paragraph. Even in that case you should verify the output every time, and it will be wrong many times, but it can still be useful with a decent success rate.