Simon Willison’s Weblog

1st October 2008 - Link Blog

simplejson 2.0.1. Python’s simplejson JSON library got a whole lot faster while I wasn’t looking.

Posted 1st October 2008 at 10:55 pm

Recent articles

Claude's new system prompt really doesn't want to reproduce song lyrics - 2nd September 2026
Claude Fable 5.1 made me a really nice animated pelican - 1st September 2026
Understanding ChatGPT Work - 30th August 2026

This is a link post by Simon Willison, posted on 1st October 2008.

bob-ippolito 5 json 150 performance 95 python 1,280 simplejson 2

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