What is Reasoning model?
An AI model that works through a problem step by step before answering, trading speed for accuracy on hard questions.
Reasoning models spend extra time “thinking” — breaking a question into steps, checking their work and trying alternatives — before they give a final answer. They are noticeably better at maths, logic, coding and multi-step planning.
The trade-off is speed and cost. For a quick caption or a casual question, a standard model is fine; for an exam problem, a tricky spreadsheet formula or debugging, switch to a reasoning mode.
When to use it
“Find the mistake in my JEE physics solution and explain it step by step” is a good job for a reasoning model.
Related terms
Getting an AI to show its working step by step, which often makes its final answer more accurate.
The type of AI behind chatbots like ChatGPT, Gemini and Claude, trained on huge amounts of text to predict and generate language.
When an AI confidently states something false — a fake fact, quote, source or statistic.
