Don't Overthink It: A Survey of Efficient R1-style Large Reasoning Models

Fuente: arXiv
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Main Authors: Yue, Linan, Du, Yichao, Wang, Yizhi, Gao, Weibo, Yao, Fangzhou, Wang, Li, Liu, Ye, Xu, Ziyu, Liu, Qi, Di, Shimin, Zhang, Min-Ling
Format: Preprint
Published: 2025
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author Yue, Linan
Du, Yichao
Wang, Yizhi
Gao, Weibo
Yao, Fangzhou
Wang, Li
Liu, Ye
Xu, Ziyu
Liu, Qi
Di, Shimin
Zhang, Min-Ling
author_facet Yue, Linan
Du, Yichao
Wang, Yizhi
Gao, Weibo
Yao, Fangzhou
Wang, Li
Liu, Ye
Xu, Ziyu
Liu, Qi
Di, Shimin
Zhang, Min-Ling
contents Recently, Large Reasoning Models (LRMs) have gradually become a research hotspot due to their outstanding performance in handling complex tasks. Among them, DeepSeek R1 has garnered significant attention for its exceptional performance and open-source nature, driving advancements in the research of R1-style LRMs. Unlike traditional Large Language Models (LLMs), these models enhance logical deduction and decision-making capabilities during reasoning by incorporating mechanisms such as long chain-of-thought and self-reflection through reinforcement learning. However, with the widespread application of these models, the problem of overthinking has gradually emerged. Specifically, when generating answers, these models often construct excessively long reasoning chains with redundant or repetitive steps, which leads to reduced reasoning efficiency and may affect the accuracy of the final answer. To this end, various efficient reasoning methods have been proposed, aiming to reduce the length of reasoning paths without compromising model performance and reasoning capability. By reviewing the current research advancements in the field of efficient reasoning methods systematically, we categorize existing works into two main directions based on the lens of single-model optimization versus model collaboration: (1) Efficient Reasoning with Single Model, which focuses on improving the reasoning efficiency of individual models; and (2) Efficient Reasoning with Model Collaboration, which explores optimizing reasoning paths through collaboration among multiple models. Besides, we maintain a public GitHub repository that tracks the latest progress in efficient reasoning methods.
format Preprint
id arxiv_https___arxiv_org_abs_2508_02120
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Don't Overthink It: A Survey of Efficient R1-style Large Reasoning Models
Yue, Linan
Du, Yichao
Wang, Yizhi
Gao, Weibo
Yao, Fangzhou
Wang, Li
Liu, Ye
Xu, Ziyu
Liu, Qi
Di, Shimin
Zhang, Min-Ling
Artificial Intelligence
Recently, Large Reasoning Models (LRMs) have gradually become a research hotspot due to their outstanding performance in handling complex tasks. Among them, DeepSeek R1 has garnered significant attention for its exceptional performance and open-source nature, driving advancements in the research of R1-style LRMs. Unlike traditional Large Language Models (LLMs), these models enhance logical deduction and decision-making capabilities during reasoning by incorporating mechanisms such as long chain-of-thought and self-reflection through reinforcement learning. However, with the widespread application of these models, the problem of overthinking has gradually emerged. Specifically, when generating answers, these models often construct excessively long reasoning chains with redundant or repetitive steps, which leads to reduced reasoning efficiency and may affect the accuracy of the final answer. To this end, various efficient reasoning methods have been proposed, aiming to reduce the length of reasoning paths without compromising model performance and reasoning capability. By reviewing the current research advancements in the field of efficient reasoning methods systematically, we categorize existing works into two main directions based on the lens of single-model optimization versus model collaboration: (1) Efficient Reasoning with Single Model, which focuses on improving the reasoning efficiency of individual models; and (2) Efficient Reasoning with Model Collaboration, which explores optimizing reasoning paths through collaboration among multiple models. Besides, we maintain a public GitHub repository that tracks the latest progress in efficient reasoning methods.
title Don't Overthink It: A Survey of Efficient R1-style Large Reasoning Models
topic Artificial Intelligence
url https://arxiv.org/abs/2508.02120