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New Research Shows Chain-of-Thought Reasoning Should Be Selective, Not Default, for LLMs

Artificial Intelligence #llms#reasoning

New Research Shows Chain-of-Thought Reasoning Should Be Selective, Not Default, for LLMs

A research paper on arXiv argues that chain-of-thought (CoT) reasoning should not be the default for large language models. The authors propose EDRM, a training-free routing framework that uses early decoding entropy to decide when to use CoT, achieving up to 55% token reduction and accuracy improvements across 15 benchmarks.

Jun 16, 2026 1 source