Simon Willison’s Weblog

CardSpace & OpenID: Working together. A more detailed explanation of what the Microsoft OpenID collaboration actually means.

Posted 7th February 2007 at 1:58 am

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

cardspace 7 microsoft 123 openid 213 scott-kveton 4

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