Evolution strategies beat GRPO on reasoning diversity and Pass@K, paper finds
Yunpeng Ba · hf · 2026-08-28
"Understanding Evolution Strategies for LLM Reasoning" examines training LLM reasoning with evolution strategies (ES). Through sparse functional updates and population diversity, ES achieves broader reasoning coverage and higher Pass@K than GRPO. The authors propose a hybrid training approach that combines the strengths of both methods.
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