By... another AI model. Which uses statistical generation to decide whether the answer is likely to be accurate or not.

Which still makes it more than probabilistic sounding words.

Compounding one probabilistic LLM with another seems to compound the probabilistic nature, not reduce it.

Wait, have we solved hallucination already?

We've gotten better at it, but it's not a problem that can be solved (ignoring solutions like saying I don't know to all questions).

No they are not