Simon Willison’s Weblog

nanoGPT. “The simplest, fastest repository for training/finetuning medium-sized GPTs”—by Andrej Karpathy, in about 600 lines of Python.

Posted 2nd January 2023 at 11:27 pm

Recent articles

Video + notes on upgrading a Datasette plugin for the latest 1.0 alpha, with help from uv and OpenAI Codex CLI - 6th November 2025
Code research projects with async coding agents like Claude Code and Codex - 6th November 2025
A new SQL-powered permissions system in Datasette 1.0a20 - 4th November 2025

python 1204 ai 1669 gpt-3 67 andrej-karpathy 33 generative-ai 1472 llms 1439

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