September sponsors-only newsletter
Simon Willison’s Weblog
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3rd October 2026
I just sent the September edition of my sponsors-only monthly newsletter. If you are a sponsor (or start a sponsorship now) you can access it here.
This month:
More Fable class models
A pricing war
3D graphics, Blender, and pixel art
LLMs come for mathematics
So many more accidental cyberattacks
The vulnapocalypse comes for Datasette
What I'm using right now
My software releases this month
2026 in LLMs (so far)
Here's a copy of the August newsletter as a preview of what you'll get. Pay $10/month to stay a month ahead of the free copy!
Recent articles
OpenAI DevDay 2026 live blog - 29th September 2026
2026 in LLMs (so far) - 27th September 2026
Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war - 22nd September 2026
This is a note by Simon Willison, posted on 3rd October 2026.
newsletter 23
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