Georgia Tech Researchers Showcase Transformer Explainer, an Open-Source GPT-2 Visualizer for Browsers

Georgia Tech researchers have built Transformer Explainer, a free, open-source tool that runs a live GPT-2 small model inside a web browser so users can watch a prompt become tokens, embeddings, attention patterns and next-token probabilities. The project is aimed at AI literacy: it makes the transformer pipeline observable without installation, cloud APIs or special hardware.