Reasoning model

A type of AI model that works through a problem in steps before giving a final answer, rather than responding in one shot. This step-by-step working is often called chain-of-thought. Reasoning models tend to do better on harder problems that need several linked judgments, which is why they have become a distinct category. The trade-offs matter for healthcare use: they are usually slower and cost more to run, and producing visible reasoning is not the same as being correct, so the steps should be treated as a model showing its work, not as a guarantee.

Terms like this come up in real clinical scenarios across the HelloAI courses: bite-sized modules with verifiable certificates. An account takes one minute, no password needed.