GPT definitely makes mistakes. GPT4 less than GPT3.5, and way less than Bard. Having spent quite a lot of professional time working through real-world problem

GPT definitely makes mistakes. GPT4 less than GPT3.5, and way less than Bard. Having spent quite a lot of professional time working through real-world problems with GPT4, I'll say it very rarely does something I'd call hallucination. It almost never invents crazy things out of whole cloth. Sometimes it makes wrong guesses about things. You gotta keep your own head and be skeptical. Often you can tell if it's coming unhinged. If it makes mistakes and you notice, it'll definitely own them unlike many LLMs. But of course it's not perfect.