Simon Willison’s Weblog

WYMeditor. A semantic rich text editor that appears not to suck!

Posted 6th December 2006 at 4:35 pm

Recent articles

Large Language Models can run tools in your terminal with LLM 0.26 - 27th May 2025
Highlights from the Claude 4 system prompt - 25th May 2025
Live blog: Claude 4 launch at Code with Claude - 22nd May 2025

javascript 708 semantic 3 richtext 3

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe