Simon Willison’s Weblog

Use HTML 4.01, not XHTML. Why Stuart’s book uses HTML, not XHTML.

Posted 21st February 2005 at 12:52 pm

Recent articles

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
GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search - 6th September 2025

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