Spreadsheets-are-all-you-need is an implementation of GPT2 (an ancestor of ChatGPT) entirely in Excel using standard spreadsheet functions.

By using a spreadsheet anyone (even non-developers) can explore and play directly with how a “real” transformer works under the hood with minimal abstractions to get in the way.

A demo and walk through of using the spreadsheet is at https://youtu.be/yjD2n_e9E3w