GPT-5 and Meta-Cognition in Reducing LLM Hallucinations

These days I'm using Grok4 code for simple coding tasks, and when I need reasoning, I frequently use GPT-5 high or pro. It definitely feels like fewer hallucinations compared to other models.

But the material in the link below was really fascinating.

To summarize in one line: when you tell an LLM to practice meta-cognition,

hallucinations decreased.

It's very important for humans to say "I don't know" when they don't know something, and the fact that this also applies to LLMs is fascinating.