Correct and it wasn’t fixed with more parameters. Reasoning models question their own output, and all of the current models can verify their sources online before replying. They are not perfect, but they are much better than they used to be, and it is practically not an issue most of the time. I have seen the reasoning models correct their own output while it is being generated. Gemini 2.5 Pro, GPT-o3, Grok 3.