Building an open-source post-training stack for large language models from first principles.

Building an open-source post-training stack for large language models from first principles. The goal is to understand and implement the systems behind modern reasoning models end-to-end: • SFT • Preference Optimization • RLHF / RLVR • Rew
Ranked #63 on backlist 2026-06-04 (04 Jun 2026 UTC) · by (Shaheen Nabi) ·

How it ranks: Backlist reads my Twitter/X timeline, scores every tweet for substance with an LLM rubric (not engagement), and publishes the daily top picks with a one-line takeaway. Curated by Surya Dantuluri.