DeepSeek AI released DeepSeek-R1, an open model that rivals OpenAI's o1 in complex reasoning tasks, introduced using Group Relative Policy Optimization (GRPO) and RL-focused multi-stage training approach. Understanding Group Relative Policy Optimization (GRPO) Group Relative Policy Optimization (GRPO) is a reinforcement learning algorithm to improve the reasoning capabilities of LLMs. It was introduced in the DeepSeekMath paper in the context of mathematical reasoning. GRPO modifies the traditio...