DecisionPivot

StartLux's diagnostic benchmark (renamed from DecideBench on Oct 14, item hashes preserved) for the control points where decision models sit in LLM systems: contrast groups of 2–4 items identical except one decisive detail, scored on pair accuracy, confident errors, calibration, and automation at a fixed 5% error rate, with accuracy also read at a 0.90 probability threshold. Releases ship SHA-256 item hashes and items found in StartLux-Decision's own training data are removed from the reference track — first-party, but built with the contamination discipline of an independent bench. Paper.