Opinion: GSPO is the Most Important RL Algorithmic Advance Since GRPO
jessi_cata · x · 2026-08-13
The author argues that GSPO represents the most significant algorithmic advance in widely-deployed LLM post-training reinforcement learning (RL) since GRPO.
The post also mentions two related algorithmic improvements:
- Dr. GRPO: Corrects for a length bias in generation.
- LUSPO: Serves as the corresponding length correction for GSPO.
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