I use a whole bunch of different models and harnesses, and I try to turn off memory when I remember to (it's getting harder to do that)
@simonw
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Speculation on model’s default preferences for React in projects
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Not sure if that's a change in default preferences from the models or just that I'm often prompting inside existing projects and the models know full well not to introduce React to a project that isn't using it already I tried in a fresh project just now and got vanilla HTML+JS
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LLMs less likely to default to React than last year
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Is it just me, or are today's LLMs less likely to default to building everything in React than they were last year? I used to have to say "don't use React" in almost all of my frontend web dev prompts, I've not had to do that for most of the models in quite a while now
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GitHub blocked by output policy in Claude Code
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Claude Code for the web has just started saying "GitHub is blocked by the output policy", which is a big problem for me because most of my prompts there start with things like "clone simonw/sqlite-utils to /tmp to see the docs in
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Three models know my dog’s name
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Three of the models correctly know my dog's name! https://intheweights.com/p/cleo
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Try Moebius on your own images in the browser
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You can try it out on your own images here (~1.3GB model download in your browser) https://t.co/rAuBRgihtD pic.twitter.com/u1qNhmf5jn
— Simon Willison (@simonw) 23 juin 2026You can try it on your own images here (model download ~1.3 GB in your browser) https://
simonw.github.io/moebius-web/ -
Porting a Moebius image model to ONNX for browser
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Today, my side project involved having Claude Code port the new Moebius precise localization image model to ONNX so that it runs entirely in the browser.
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Can’t wait for Groq or Cerebras to run GLM 5.2
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Really looking forward to one of the ultra-fast custom silicon inference providers like @GroqInc or @cerebras running GLM 5.2 Cerebras has GLM-4.7, Groq is still mostly on Llama 3.x and gpt-oss
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Datasette reimagined as Claude Artifacts with JSON API to database
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Think of this as Claude Artifacts reimagined for Datasette – you get all the power of artifacts but with a JSON API to a full relational database, allowing your HTML+JS apps to access and store data in all shapes and sizes
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AI model jump felt like Opus 4 to 4.5, GPT-3.5 to 4
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The jump felt to me like Opus 4 to Opus 4.5, or GPT-3.5 to GPT-4