Simon Willison’s Newsletter
Simon WillisonAI, LLMs, web engineering, open source, data science, Datasette, SQLite, Python and more
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 190 | Founded | 4 years ago | Last Issue | 8 days ago |
| Active | |||||
Read this Newsletter
simonw.substack.comLatest Issues
Navier–Stokes, RubyGems attacked, GIS and Blender with GPT-6 Astra
In this newsletter:
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Some thoughts on the Navier–Stokes Millennium Prize Problem
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Generating running routes with GPT-6 Astra and ChatGPT Work
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OpenAI agents attacked RubyGems back in May
Plus 7 links, 7 quotations, 1 note, 7...
GPT-6 Astra, Claude Fable 5.1, and yet more rogue agent attacks
In this newsletter:
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The Pelican comparison grid for Astra is pretty interesting
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OpenAI’s rogue agents were caught communicating via public wikis
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Claude Fable 5.1 made me a really nice animated pelican
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Claude’s new system...
Understanding ChatGPT Work
In this newsletter:
- Understanding ChatGPT Work
Plus 6 links and 1 quotation and 1 release
Sponsor message: Static code review has a ceiling. It can reason about what the code says. It can’t tell you what it does. TREX (whic...
Conceptual integrity and counting lines of code
In this newsletter:
- Conceptual integrity and counting lines of code
Plus 6 links and 4 quotations and 1 note and 3 releases and 2 research reports
Sponsor message: Constrain AI agent abilities with trusted runtimes and Agen...
Qwen 3.8 27B is excellent, but it defaults to wildly overthinking things
In this newsletter:
- Qwen 3.8 27B is excellent, but it defaults to wildly overthinking things
Plus 7 links and 5 quotations and 1 note and 6 releases and 1 research report and 1 tool and 1 comment
Sponsor message: Agents are...
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Authors
The writers behind this newsletter.
Creator of @datasetteproj, co-creator Django. Fellow at @JSKstanford. Collector of @nichemuseums. Usually hanging out with @natbat and @cleopaws. He/Him
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