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New CoFiBreak method enhances LLM red teaming diversity and effectiveness

Researchers have developed a new method called CoFiBreak to improve the diversity of automated red teaming for large language models. This technique uses a coarse-to-fine diversity reward system to encourage broader attack strategies and prompt variations without sacrificing effectiveness or increasing inference costs. CoFiBreak has demonstrated the ability to discover significantly more distinct successful attack strategies compared to existing baselines, and these attacks have shown effectiveness against unseen frontier LLMs, including Claude Opus-4.6. AI

IMPACT Enhances LLM safety evaluations by improving the diversity and effectiveness of automated red teaming techniques.

RANK_REASON The cluster contains an academic paper detailing a new method for LLM safety research. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.CL →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

New CoFiBreak method enhances LLM red teaming diversity and effectiveness

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The cluster contains an academic paper detailing a new method for LLM safety research. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Jialin Song, Xiaodong Liu, Weiwei Yang, Mingqian Feng, Chengquan Guo, Qiyao Ma, Carolyn Buractaon, Anson Ho, Wuyang Chen, Christopher White ·

    CoFiBreak: A Coarse-to-Fine Diversity Reward for Effective Multi-Turn Jailbreak

    arXiv:2610.40926v1 Announce Type: new Abstract: Automated red teaming trains an attacker large language model (LLM) to elicit harmful responses from a victim LLM, but reinforcement learning can collapse attackers onto a narrow set of prompts when attack success is the only reward…