Spreadsheets-are-all-you-need implements the forward pass 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.
Visit spreadsheets-are-all-you-need.ai for more info
The sheet is available as an xlsb (Excel binary) file in the Releases section of this repo. You should be able to download and run this file in Excel for Mac or PC.