Contamination Inflates Scores but Rarely Reorders Large Language Model Leaderboards

cs.CL, stat.AP, stat.ME

Submitted: 2026-07-05

Updated: 2026-07-05

Comments: 21 pages, 4 figures, 3 tables. Code and data: https://github.com/DoriaXiao/anchor-dif

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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