ResearchResearch paperAgents & Tool Use · Reinforcement Learning · Evaluation & Benchmarks2 sources · Oct 14, 2026

More Methods, Better Agents? A Reality Check on Self-Distillation in Agentic Reinforcement Learning

Self-distillation in agentic reinforcement learning has produced a growing number of methods.

Key points

  • However, existing evaluations often reuse published baseline scores under differing experimental conditions, provide few direct comparisons among contemporaneous methods, and give limited attention to training stability and computational cost.
  • Costly agent training further motivates a common basis for comparison.
  • To address these gaps, we compare ten representative methods against GRPO on ALFWorld, ScienceWorld, Search-QA, and WebShop across three model sizes.
  • Beyond final task performance, we examine training progress, stability, and measured computational cost.

Sources (2)

Extractive summary: sentences quoted from the sources.

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