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Don't Overthink it. Preferring Shorter Thinking Chains for Improved LLM Reasoning

Michael Hassid, Gabriel Synnaeve, Yossi Adi, Roy Schwartz

2025-05-28

Don't Overthink it. Preferring Shorter Thinking Chains for Improved LLM
  Reasoning

Summary

This paper talks about how large language models, or LLMs, can actually reason just as well or even better when they use shorter and simpler explanations instead of long, complicated ones.

What's the problem?

The problem is that many AI models are designed to use long chains of reasoning to solve problems, which can take a lot of time and computer power, and sometimes doesn't even lead to better answers.

What's the solution?

The researchers tested what happens when these models use shorter reasoning chains and found that they can still perform at the same level or even improve, while also saving time and resources.

Why it matters?

This matters because it shows that AI can be made more efficient and faster without losing accuracy, which is important for making these models more practical and accessible for everyone.

Abstract

Shorter reasoning chains in LLMs can achieve similar or better performance with reduced computational cost and inference time compared to longer chains.