Latest / October 23, 2026
5 posts from engineering leaders published October 23, 2026, by Simon Willison, Jeff Geerling, Marc Brooker and 1 more.
Tool: Quick Study Prompt to Claude Opus 5.5 High : Build an artifact where you open a photo and it rapidly (in a few seconds) paints a version of that photo using a canvas element and simulated paintbrush See also my previous experiment getting Claude Fable to simulate a…
Introducing Kimi K3.1 Pro Kimi K3.1 Pro landed on the Kimi API today - it's not yet open weights, but Moonshot promise "Full model weights will be released by Nov 4, 2026". They're also offering a "Highspeed" version that's 2-3x faster, at twice the price (except for input token…
Since learning about the effects of high CO2 concentration on attention and cognitive performance—especially at levels much higher than 2000ppm—I've started monitoring CO2 and other air quality indicators in my house, at my studio, and even on the road. I have a few other air…
Animations for System Builders: Metastability and Lost Writes Pretty pictures help us learn, maybe? MathJax = { tex: {inlineMath: [['\\(', '\\)'], ['$', '$']]} }; One of the things I love using LLMs for is helping me understand systems better. In the Strands Decider post I wrote…
A forlorn businessman resting his head against a wall beside a window. Photo by Andrea Piacquadio, via Pexels. In the hours following the release of CVE-2026-89078 for the project Ruby , site reliability workers and systems administrators scrambled to desperately rebuild and…