LLM Visualization (A 3D Walkthrough of a Language Model)
A guided tour that unfolds the inside of a GPT language model in 3D and walks you from top to bottom. It starts with nano-gpt, a model of just 85,000 parameters, doing one simple task: sorting a string like "C B A B B C" into alphabetical order. You come away with a feel for what actually happens at each layer as numbers become embeddings, pass through the stack, and end as next-token probabilities.
How to try it
Press "Continue" at the bottom or hit the space bar to advance the explanation one step at a time, and rotate or zoom the 3D model with the mouse. The table of contents on the left lets you jump to sections such as Embedding, Self Attention, or Softmax, and the selector at the top swaps nano-gpt for GPT-2 or GPT-3 so you can compare their scale. The interface is English only.