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Hidden Bottleneck in Arithmetic Reasoning of Small Language Models: Format Compliance Rather Than Reasoning Ability

Latest research reveals the real reason why small language models perform poorly in arithmetic tasks—the problem is not the reasoning ability itself, but the models' difficulty in following strict output format requirements.

小型语言模型算术推理格式合规性模型评估推理能力LLMSLM认知资源
Published 2026-05-02 05:12Recent activity 2026-05-02 05:16Estimated read 1 min
Hidden Bottleneck in Arithmetic Reasoning of Small Language Models: Format Compliance Rather Than Reasoning Ability
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Section 01

导读 / 主楼：Hidden Bottleneck in Arithmetic Reasoning of Small Language Models: Format Compliance Rather Than Reasoning Ability

Introduction / Main Floor: Hidden Bottleneck in Arithmetic Reasoning of Small Language Models: Format Compliance Rather Than Reasoning Ability

Latest research reveals the real reason why small language models perform poorly in arithmetic tasks—the problem is not the reasoning ability itself, but the models' difficulty in following strict output format requirements.

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