It really doesn't. It's a language model. Literally every webpage on this topic mentions that.

This is why it will happily tell you that a director directed a movie before they were born, and agree with you when you point that out, and continue to insist that he did it. There is no ability to synthesize and apply new information to a line of reasoning, because the chain of thought is an illusion wrought by a statistical language model.

Its purpose is to be semantically correct, not to reason.