Guiding Reasoning in Small Language Models with LLM Assistance

Fuente: arXiv
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Main Authors: Kim, Yujin, Yi, Euiin, Kim, Minu, Yun, Se-Young, Kim, Taehyeon
Format: Preprint
Published: 2025
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author Kim, Yujin
Yi, Euiin
Kim, Minu
Yun, Se-Young
Kim, Taehyeon
author_facet Kim, Yujin
Yi, Euiin
Kim, Minu
Yun, Se-Young
Kim, Taehyeon
contents The limited reasoning capabilities of small language models (SLMs) cast doubt on their suitability for tasks demanding deep, multi-step logical deduction. This paper introduces a framework called Small Reasons, Large Hints (SMART), which selectively augments SLM reasoning with targeted guidance from large language models (LLMs). Inspired by the concept of cognitive scaffolding, SMART employs a score-based evaluation to identify uncertain reasoning steps and injects corrective LLM-generated reasoning only when necessary. By framing structured reasoning as an optimal policy search, our approach steers the reasoning trajectory toward correct solutions without exhaustive sampling. Our experiments on mathematical reasoning datasets demonstrate that targeted external scaffolding significantly improves performance, paving the way for collaborative use of both SLM and LLM to tackle complex reasoning tasks that are currently unsolvable by SLMs alone.
format Preprint
id arxiv_https___arxiv_org_abs_2504_09923
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Guiding Reasoning in Small Language Models with LLM Assistance
Kim, Yujin
Yi, Euiin
Kim, Minu
Yun, Se-Young
Kim, Taehyeon
Computation and Language
The limited reasoning capabilities of small language models (SLMs) cast doubt on their suitability for tasks demanding deep, multi-step logical deduction. This paper introduces a framework called Small Reasons, Large Hints (SMART), which selectively augments SLM reasoning with targeted guidance from large language models (LLMs). Inspired by the concept of cognitive scaffolding, SMART employs a score-based evaluation to identify uncertain reasoning steps and injects corrective LLM-generated reasoning only when necessary. By framing structured reasoning as an optimal policy search, our approach steers the reasoning trajectory toward correct solutions without exhaustive sampling. Our experiments on mathematical reasoning datasets demonstrate that targeted external scaffolding significantly improves performance, paving the way for collaborative use of both SLM and LLM to tackle complex reasoning tasks that are currently unsolvable by SLMs alone.
title Guiding Reasoning in Small Language Models with LLM Assistance
topic Computation and Language
url https://arxiv.org/abs/2504.09923