Calibration
Vals GPQA Diamond → Vals MMLU-Pro
Vals MMLU-Pro is estimated from Vals GPQA Diamond with a Hill curve fitted on 55 models measured on both: y = 0.7083 + (0.9866 − 0.7083)·x^6.00 / (0.83901^6.00 + x^6.00), R² = 0.82, cross-validated error 2.2 pp. It is used for 0 estimates.