Show HN: Group Relative Policy Optimization, visualized step by step

Category: ai-ml

Tags: reinforcement-learning, machine-learning, educational, visualization, transformer

Score: 6.3/10 (Innovation: 7, Technical: 6, Documentation: 8, Utility: 4)

This project provides an interactive, visual explanation and a minimal toy implementation of Group Relative Policy Optimization (GRPO), an RL algorithm for aligning language models. It's interesting because it replaces the traditional value network with group sampling for advantage calculation, and the educational visualizations are driven by real tensors from a trained toy Transformer.

Target audience: data engineers, machine learning practitioners, researchers, educators

Repository: https://adamsohn.com/grpo/ · Svelte

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