How Can You Tell if Your Large Language Model Could Be a Closet Antisemite? An Explainability-Based Audit Framework for Implicit Bias

Auditing large language models (LLMs) for biases is an ongoing and dynamic process, resembling a proverbial cat-and-mouse game. As researchers identify new vulnerabilities in LLMs, guardrails are updated to address them, prompting the need for innovative approaches to audit the increasingly fortified LLMs for biases. This paper makes three contributions. First, it introduces a scalable, explainable framework to measure biases against various identity groups across multiple open large language models. Second, it conducts a bias audit considering five well-known open LLMs and demonstrates their bias inclinations towards several historically disadvantaged groups. Our audit reveals disturbing antisemitic, Islamophobic, and xenophobic biases present in several well-known LLMs. Finally, we release a dataset of 1,000 probes curated under the supervision of an expert social scientist that can facilitate similar audits.

Authors

• Arka Dutta Rochester Institute of Technology Carnegie Mellon University
• Reza Fayyazi Rochester Institute of Technology
• Shanchieh Yang Rochester Institute of Technology
• Ashiqur R. KhudaBukhsh Rochester Institute of Technology

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