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Though once deemed too dangerous to release to the public—though the verdict is still out—GPT-2 has been crammed into a Microsoft Excel spreadsheet, as an AI heuristic tool offline and running locally to teach developers how large language models work and hopefully inspiring the next phase of improvement. Still working off the autocomplete, next token prediction principle that underpins all present chat applications, users input prompts in adjacent fields and the algorithm tries to triangulate a response, and interesting in a way that’s constrained and self-contained so that those experimenting might be able to debug themselves or understand how the sentence building went awry. The other uses that people have shoehorned into the accounting software are always pretty fascinating and the binary file is free to download. More technical details and a tutorial are at the file’s link and at Ars Technica at the link above.