Simon Willison’s Weblog

Newsletter

Tuesday, 3rd November 2026

I sent out the October edition of my sponsors-only monthly newsletter. If you are a sponsor (or start a sponsorship now) you can access it here. This month:

  • The October inflection point for vibe game development
  • The vulnerability apocalypse gets hot
  • LLM releases
  • API credits for $100+/month subscriptions
  • What I'm using right now
  • My software releases

My September newsletter can now be seen here, as a preview of what you'll get. Pay $10/month to stay a month ahead of the free copy!

# 5:28 am / newsletter

I discovered a sound that leaks your exact location (and it’s everywhere)—YouTube (via) Genius piece of OSINT by Colsto, who demonstrates how you can take almost imperceptible background noise of planes from a video soundtrack, figure out their Doppler curves, then cross reference them against ADS-B data to find the exact location of the video based on their speed, distance, and gaps between different flights.

# 5:32 am / privacy, youtube

Qwen 3.8 27B on my laptop can interpret model weights, too

Yesterday’s hot paper was Sparks of Weight-Space Programming: LLMs can natively read & write neural network weights by Rikiya Takehi, Jayden Teoh, Alex Zhang, and Omar Khattab. The paper found that frontier models, in particular GPT-6 Astra, can both interpret and modify the raw weights of a machine learning model—literally a text description of the model containing a bunch of floating point numbers. I’ve been playing with one of the examples from the paper and I’m delighted to share that Qwen 3.8 27B running on my laptop can do this as well!

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