Simon Willison’s Weblog

TiddlyWiki (via) Client-side Wiki in JavaScript. In page editing is The Next Big Thing.

Posted 24th September 2004 at 3:43 am

Recent articles

My Lethal Trifecta talk at the Bay Area AI Security Meetup - 9th August 2025
The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
GPT-5: Key characteristics, pricing and model card - 7th August 2025

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