A couple of days ago I asked it to tell me about the Duncan Tournament yo-yo (one of the early commercial wooden yo-yos, still made in reproductions today). It generated multiple paragraphs of text in which it described the Tournament as "butterfly" shaped, which is not true.
I asked it if the Tournament is what became the Imperial yo-yo (a modern plastic yo-yo with the same basic shape). It said no, across multiple paragraphs, again claiming that the Tournament was butterfly-shaped.
I then just plainly told it that the Tournament was NOT butterfly-shaped, and it apologized for misspeaking.