Post-Training is About States, Not Tokens: A State Distribution View of SFT, RL, and On-Policy Distillation

Dong Nie

By Callan Zhang · May 21, 2026 · Editorial standards →

Summarised from the primary source with AI assistance under human editorial oversight. Turing Wire is not a primary source — read the original for the authoritative account.

Source: arXiv cs.AI