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News/Leaderboard Hacking: Preference-Based Model Evaluations are Vulnerable to Manipulation
arxiv
PublishedNovember 14, 2026 at 5:00 AM

Leaderboard Hacking: Preference-Based Model Evaluations are Vulnerable to Manipulation

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arXiv:2611.14769v1 Announce Type: new Abstract: Arena-style rankings of language models are a widely used evaluation framework in online leaderboards, research papers, and model evaluation in production. These rankings aim to realistically assess model performance using pairwise comparisons of anony

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