Nat Lambert finishes a RLHF book built from nights and weekends since 2024
danielhanchen · x · 2026-07-22
Nat Lambert says his book Reinforcement Learning from Human Feedback is finished, describing it as the guide he wished he had when learning to fine-tune, align, and post-train models after ChatGPT. He says the book was assembled through nights-and-weekends study since 2024, drawing on lessons from building Olmo.
Related event: Nat Lambert Completes RLHF Book with 10+ Hour Course(11 posts)→
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