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Reasoning model

Written by Minh Khang

What is Reasoning model?

A reasoning model is an AI model that takes time to "think" through several steps before answering, so it handles harder problems better.

OpenAI released its o1 models in September 2024, then Google, Anthropic and DeepSeek released their own reasoning models: they draft the steps before giving the answer. Results are more reliable for work that needs calculation or planning, but slower and cost more tokens.

Reasoning model in a shop

No need for it to quote delivery fees. To plan stock for Tet from three years of sales, a reasoning model does clearly better.

Sources

The dated facts on this page come from the original sources below.

  1. OpenAI
    Learning to reason with LLMs

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