https://writings.stephenwolfram.com/2023/02/what-is-chatgpt-doing-and-why-does-it-work/#circle=on

Stephenwolfram
What Is ChatGPT Doing … and Why Does It Work?

Stephen Wolfram explores the broader picture of what's going on inside ChatGPT and why it produces meaningful text. Discusses models, training neural nets, embeddings, tokens, transformers, language syntax.