A chess testbed studies how to split compute between pretraining, SFT, and RL
Pavel_Izmailov · x · 2026-07-21
The paper introduces a chess-based testbed to study how compute should be split across pretraining, SFT, and RL.
- It mimics a normal LLM pipeline: pretrain on human games, then SFT on synthetic reasoning traces, then RL on chess puzzles.
- The goal is to study pretraining-to-post-training scaling on a tractable compute budget.
- The setup lets the authors test how PT loss predicts later RL performance, and how compute allocation changes with scale.
Related event: New Research Proposes Joint Scaling Law for Pretraining and RL(18 posts)→
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