DefinitionArticle

A 'reasoning model' is one that outputs an intermediate reasoning trace, working through a task step by step — it does not literally reason the way humans do, just as artificial neural networks don't literally work like biological ones.

Raschka defines 'reasoning model' as a model that produces an intermediate reasoning trace, cautioning against taking the term literally as human-like reasoning. ✦ AI generated

Sebastian Raschka · Ahead of AI · 2026-07-18 · original ↗

Share card ↓Export .md Export .txt

In the context of AI and LLM research, "reasoning model" means a model that outputs an intermediate reasoning trace, which is like an intermediate response that works through a question or task step by step.

Read full article ↗excerpt · fair-use quotation

✳ reasoning model

Around this claim

Extends · 1

The <think></think> tags are purely cosmetic markers for separating the reasoning trace from the final answer; they do not confer or improve reasoning ability, and a model trained without them would likely perform just as well.Sebastian Raschka · Ahead of AI · conf 60%

This moment responds to

rebuts → The cognitive machinery of large language models turns out to be structurally similar to human cognition, which validates anthropomorphizing as a legitimate and productive way to reason about them.Nathan · The Cognitive Revolution