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Reasoning model
A model trained to spend extra computation thinking through steps before answering, improving accuracy on complex problems.
Definition
Reasoning models generate intermediate reasoning, sometimes shown as a summary, before the final answer, trading speed and cost for better performance on maths, code, planning, and multi-step analysis. Many assistants let users switch between fast and reasoning modes or adapt automatically to task difficulty.
Why it matters when choosing a tool
Choose reasoning modes for hard, verifiable tasks and fast modes for drafting and simple lookups to balance quality, latency, and cost.
Where you will meet it
AI Assistants, AI Coding & Development, AI Data & Analytics
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