How Should We Enhance the Safety of Large Reasoning Models: An Empirical Study

Fuente: arXiv
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Autori principali: Zhang, Zhexin, Loye, Xian Qi, Huang, Victor Shea-Jay, Yang, Junxiao, Zhu, Qi, Cui, Shiyao, Mi, Fei, Shang, Lifeng, Wang, Yingkang, Wang, Hongning, Huang, Minlie
Natura: Preprint
Pubblicazione: 2025
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author Zhang, Zhexin
Loye, Xian Qi
Huang, Victor Shea-Jay
Yang, Junxiao
Zhu, Qi
Cui, Shiyao
Mi, Fei
Shang, Lifeng
Wang, Yingkang
Wang, Hongning
Huang, Minlie
author_facet Zhang, Zhexin
Loye, Xian Qi
Huang, Victor Shea-Jay
Yang, Junxiao
Zhu, Qi
Cui, Shiyao
Mi, Fei
Shang, Lifeng
Wang, Yingkang
Wang, Hongning
Huang, Minlie
contents Large Reasoning Models (LRMs) have achieved remarkable success on reasoning-intensive tasks such as mathematics and programming. However, their enhanced reasoning capabilities do not necessarily translate to improved safety performance-and in some cases, may even degrade it. This raises an important research question: how should we enhance the safety of LRMs? In this paper, we present a comprehensive empirical study on how to enhance the safety of LRMs through Supervised Fine-Tuning (SFT). Our investigation begins with an unexpected observation: directly distilling safe responses from DeepSeek-R1 fails to significantly enhance safety. We analyze this phenomenon and identify five key risky patterns that contribute to it. We then demonstrate that explicitly addressing these issues during the data distillation process can lead to substantial safety improvements. Next, we explore whether a long and complex reasoning process is necessary for achieving safety. Interestingly, we find that simply using short or template-based reasoning process can attain comparable safety performance. These findings prompt a deeper reflection on the role of reasoning in ensuring safety. Finally, we conduct a comprehensive ablation study to reveal the impact of different training configurations. Overall, we hope our empirical study could provide a more holistic picture on enhancing the safety of LRMs. The code and data used in our experiments are released in https://github.com/thu-coai/LRM-Safety-Study.
format Preprint
id arxiv_https___arxiv_org_abs_2505_15404
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle How Should We Enhance the Safety of Large Reasoning Models: An Empirical Study
Zhang, Zhexin
Loye, Xian Qi
Huang, Victor Shea-Jay
Yang, Junxiao
Zhu, Qi
Cui, Shiyao
Mi, Fei
Shang, Lifeng
Wang, Yingkang
Wang, Hongning
Huang, Minlie
Computation and Language
Large Reasoning Models (LRMs) have achieved remarkable success on reasoning-intensive tasks such as mathematics and programming. However, their enhanced reasoning capabilities do not necessarily translate to improved safety performance-and in some cases, may even degrade it. This raises an important research question: how should we enhance the safety of LRMs? In this paper, we present a comprehensive empirical study on how to enhance the safety of LRMs through Supervised Fine-Tuning (SFT). Our investigation begins with an unexpected observation: directly distilling safe responses from DeepSeek-R1 fails to significantly enhance safety. We analyze this phenomenon and identify five key risky patterns that contribute to it. We then demonstrate that explicitly addressing these issues during the data distillation process can lead to substantial safety improvements. Next, we explore whether a long and complex reasoning process is necessary for achieving safety. Interestingly, we find that simply using short or template-based reasoning process can attain comparable safety performance. These findings prompt a deeper reflection on the role of reasoning in ensuring safety. Finally, we conduct a comprehensive ablation study to reveal the impact of different training configurations. Overall, we hope our empirical study could provide a more holistic picture on enhancing the safety of LRMs. The code and data used in our experiments are released in https://github.com/thu-coai/LRM-Safety-Study.
title How Should We Enhance the Safety of Large Reasoning Models: An Empirical Study
topic Computation and Language
url https://arxiv.org/abs/2505.15404