High IRR LLM judges risk more false positives, study warns

IanArawjo · x · 2026-08-25

Ian Arawjo critiques industry guidelines that suggest high Inter-Rater Reliability (IRR) validates LLM-as-a-Judge systems. He argues this recommendation is flawed, noting that for many IRR metrics, the risk of false positives actually peaks at high consistency levels (0.9).

Related event: High Inter-Rater Consistency in LLM Evaluation May Be Misleading, Researcher Warns(2 posts)→

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