<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Posttraining</title><description>Notes on AI systems after pretraining.</description><link>https://posttraining.dev/</link><item><title>On-Policy Distillation</title><link>https://posttraining.dev/essays/on-policy-distillation/</link><guid isPermaLink="true">https://posttraining.dev/essays/on-policy-distillation/</guid><description>A careful introduction to on-policy distillation as on-policy student rollouts with dense teacher supervision.</description><pubDate>Fri, 05 Jun 2026 00:00:00 GMT</pubDate><category>distillation</category><category>post-training</category><category>alignment</category><category>evals</category></item><item><title>Welcome to Posttraining</title><link>https://posttraining.dev/essays/welcome-to-posttraining/</link><guid isPermaLink="true">https://posttraining.dev/essays/welcome-to-posttraining/</guid><description>Why this site exists and what kinds of AI systems writing will live here.</description><pubDate>Tue, 02 Jun 2026 00:00:00 GMT</pubDate><category>meta</category><category>post-training</category><category>ai</category></item></channel></rss>