# Beyond Teacher Assignment: Domain-Normalized Multi-Teacher On-Policy Distillation > Source: > Published: 2026-09-29 06:00:02+00:00 Reinforcement learning can turn one language model into several specialists, each excellent at a single skill such as mathematics, coding or following instructions, but users need one model with all of these skills. Multi-teacher on-policy distillation (MOPD) merges them by letting the specialists t