# Function-Space Temporal Self-Distillation for Policy Optimization > Source: > Published: 2026-10-27 01:30:25+00:00 Reinforcement Learning with Verifiable Rewards (RLVR) improves reasoning in language models, but scalar outcomes provide coarse supervision over response trajectories. Self-distillation offers denser token-level guidance by comparing an unassisted policy with a feedback-informed self-teacher, yet th