July 2026 newsletter

Simon Willison's Weblog Simon Willison's Weblog —

The June edition of my https://github.com/sponsors/simonw/">sponsors-only monthly newsletter is out.

If you are a sponsor (or if you start a sponsorship now) you can https://github.com/simonw-private/monthly/blob/main/2026-07-july.md">access it here.


This month:



  • Accidental cyberattacks by OpenAl and Anthropic models under test

  • GPT-5.6 Sol, Terra, and Luna

  • Claude Opus 5

  • Kimi K3 and DeepSeek-V4-Flash-0731

  • Open letters about Al development

  • A fireside chat and a podcast

  • Reigniting my interest in MCP

  • Other model releases

  • My projects

  • What I'm using at the moment


Here's https://github.com/simonw/monthly-newsletter-archive/blob/main/2026-06-june.md">a copy of the June newsletter as a preview of what you'll get.

Pay $10/month to stay a month ahead of the free copy!



Tags: https://simonwillison.net/tags/newsletter">newsletter

Read full article at Simon Willison's Weblog →