Simon Willison’s Weblog

Hctree Design Documentation. More detailed information on the design of the new Hctree SQLite branch.

Posted 20th January 2023 at 12:50 am

Recent articles

I think "agent" may finally have a widely enough agreed upon definition to be useful jargon now - 18th September 2025
My review of Claude's new Code Interpreter, released under a very confusing name - 9th September 2025
Recreating the Apollo AI adoption rate chart with GPT-5, Python and Pyodide - 9th September 2025

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