EscheWang/ChemRD-Hard-100

ChemRD-Hard-100 100 bilingual (English / Chinese) PhD-level chemistry items, selected by measured difficulty from a 474-item verified pool. Every item is self-contained: everything needed to answer it is in the item. Leaderboard 18 arms, each one isolated process or request per item, both languages, no shared context between items. Reasoning is off wherever the endpoint allows it, and the last column reports the reasoning tokens actually observed, so the claim is… See the full description on the dataset page: https://huggingface.co/datasets/EscheWang/ChemRD-Hard-100.