RLinf: A Friendly, End-to-End Guide to the New Open-Source Reinforcement-Learning Infrastructure After reading this 3,000-word walkthrough you will know exactly what RLinf is, what it can do, how to install it, and why the team behind it believes it will become the default backbone for training intelligent agents. 1. Why We Needed Yet Another RL Framework If you have ever tried training a robot arm, a large language model, or a game-playing agent with reinforcement learning, you have probably run into three headaches: Your graphics cards sit idle while the CPU is maxed out. Switching to a new model means …