Reasoning models are mostly regular LLMs trained to output a "<thinking></thinking>" token delimiter before the answer that will be shown to the user, and that's a clever use of the Chain of Thought idea. All of which I'm completely familiar with.
GP was saying
> That would be true of non-iterative models that just emit an output from beginning to end.
https://openai.com/index/openai-o1-system-card/
https://arxiv.org/html/2410.10630v1
https://magazine.sebastianraschka.com/p/understanding-reason...