ImpossibleRubrics: Stress-Testing Generated Rubrics as Reward Signals
ImpossibleRubrics is introduced, a benchmark of 169 impossible tasks spanning six impossibility categories, each paired with a verifiable oracle certificate specifying what an honest answer may and may not claim, together with 48 answerable controls.
Bo-Wen Qin, Yi Xie, Ye-Sheng Liu et al.
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