Single-Layer Training Matches Full-Param RL
Zijian Zhang · hf · 2026-07-09
A recent study reveals that during the RL adaptation of Transformers, performance gains aren't evenly distributed across all layers, but are highly concentrated in a few intermediate layers. The author suggests that training just a single Transformer layer can achieve results close to full-parameter RL training on certain tasks.
Related event: Training Single Transformer Layer Can Match Full-Parameter RL, Study Finds(2 posts)→
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