Post #233232 1.32K Oct 2, 2026, 16:15 UTC Fixing GRPO's credit assignment problem without evaluating every stepArticle, Comments arXiv.org Targeting Pivotal Decisions for Credit Assignment in Agentic... Group Relative Policy Optimization (GRPO) has become a promising approach for training large language model agents. However, its uniform assignment of trajectory-level advantages to all policy... 🐳 5 🌭 1