# Judging the Justification: Decision Certificate Supervision for Generative Reward Models > Source: > Published: 2026-10-26 18:30:13+00:00 Generative reward models (GenRMs) generate natural language rationales to justify preference judgments, yet a correct verdict does not guarantee a sound justification. Existing approaches often rely on reference explanations to supervise rationales, but obtaining such references can be costly and do