Simon Willison’s Weblog

This morning I sent out the third edition of my LLM digest newsletter for my $10/month and higher sponsors on GitHub. It included the following section headers:

• Claude Code
• Model releases in July
• Gold medal performances in the IMO
• Reverse engineering system prompts
• Tools I'm using at the moment

The newsletter is a condensed summary of highlights from the past month of my blog. I published 98 posts in July - the concept for the newsletter is that you can pay me for the version that only takes 10 minutes to read!

Here are the newsletters I sent out for June 2025 and May 2025, if you want a taste of what you'll be getting as a sponsor. New sponsors instantly get access to the archive of previous newsletters, including the one I sent this morning.

Update: I also sent out my much longer, more frequent and free weekly-ish newsletter - this edition covers just the last three days because there's been so much going on. That one is entirely copy-and-pasted from my blog so if you read me via feeds you'll have seen it all already.