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GRPO
TermGRPO (Generalized ??? Policy Optimization) is a reinforcement-learning policy optimization algorithm positioned as an alternative to PPO for training sequential decision-making agents. Research papers cite its instability on long-horizon, tool-using LLM agents, motivating newer methods such as Sample Policy Optimization.
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RFT meets prod: GRPO for agents and a sub-2ms Go/Python serving pattern2026-04-20Reinforcement fine-tuning is moving from papers to production, and a Go/Python pattern shows how to serve sub-...
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Stabilizing Agentic RL and Closing Multilingual Alignment Gaps2026-03-06New research points to a more stable RL path for long-horizon LLM agents and exposes multilingual alignment ga...