Train GRPO-powered RL agents with minimal code changes and maximal performance! Agent Reinforcement Trainer (ART) ART is an open-source reinforcement training library for improving LLM performance in agentic workflows. ART utilizes the powerful GRPO reinforcement learning algorithm to train models from their own experiences. Unlike most RL libraries, ART allows you to execute agent runs in your existing codebase while offloading all the complexity of the RL training loop to the ART backend. Read...