XGUARD: A Graded Benchmark for Evaluating Safety Failures of Large Language Models on Extremist Content

• URL: http://arxiv.org/abs/2506.00973v1
• Date: Sun, 01 Jun 2025 11:48:54 GMT
• Title: XGUARD: A Graded Benchmark for Evaluating Safety Failures of Large Language Models on Extremist Content
• Authors: Vadivel Abishethvarman, Bhavik Chandna, Pratik Jalan, Usman Naseem,
• Abstract summary: We present XGUARD, a benchmark and evaluation framework designed to assess the severity of extremist content generated by Large Language Models (LLMs)<n>XGUARD includes 3,840 red teaming prompts sourced from real world data such as social media and news, covering a broad range of ideologically charged scenarios.<n>Our framework categorizes model responses into five danger levels (0 to 4), enabling a more nuanced analysis of both the frequency and severity of failures.
• Score: 3.4303348430261202
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large Language Models (LLMs) can generate content spanning ideological rhetoric to explicit instructions for violence. However, existing safety evaluations often rely on simplistic binary labels (safe and unsafe), overlooking the nuanced spectrum of risk these outputs pose. To address this, we present XGUARD, a benchmark and evaluation framework designed to assess the severity of extremist content generated by LLMs. XGUARD includes 3,840 red teaming prompts sourced from real world data such as social media and news, covering a broad range of ideologically charged scenarios. Our framework categorizes model responses into five danger levels (0 to 4), enabling a more nuanced analysis of both the frequency and severity of failures. We introduce the interpretable Attack Severity Curve (ASC) to visualize vulnerabilities and compare defense mechanisms across threat intensities. Using XGUARD, we evaluate six popular LLMs and two lightweight defense strategies, revealing key insights into current safety gaps and trade-offs between robustness and expressive freedom. Our work underscores the value of graded safety metrics for building trustworthy LLMs.

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