Simon Willison’s Weblog

Believing AI vendors who promise you that they won't train on your data is a huge competitive advantage these days.

Posted 14th April 2025 at 4:30 pm

Recent articles

Talking AI and jobs with Natasha Zouves for News Nation - 30th May 2025
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

llms 1134 ai 1324 generative-ai 1150

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