Jonathan Su Yuntao

Public research release of 102 Singapore legal research questions, model responses from 6 systems, and overlapping grades on five dimensions. Headline metrics are overlapping binary flags, not a ranking and not a partition of 100%. — comparison table, category heatmap, per-question comparison, and every answer with its sources and grades. Hallucination is Incorrectness OR Misgroundedness. Incompleteness and Substantial Correctness are independent of Hallucination. A response may be both Substantially Correct and Hallucinated. Hallucination × Substantial Correctness: H yes / SC yes = 269; H yes / SC no = 178; H no / SC yes = 130; H no / SC no = 35. Each cell is count (percentage; Wilson…