📰 Simon Willison's Blog

Any Nix package, live in your browser Farid Zakaria calls this his " magnum opus of Nix work", and I can see why. trynix.dev provides a qemu-wasm powered x86_64

Native is now the future of mobile at Shopify Shopify are moving from React Native back to separate Swift and Kotlin codebases for their native apps, for the ex

Today, we're releasing a demo of WeWorm, the first zero-click worm to spread through WeChat calls across iOS and Android. [...] The victim does not need to answ

Tool: .blend URL Viewer I'm continuing to have a lot of fun with GPT-6 Astra and Blender (see my TIL ). As a big fan of the Imperial Fabergé Easter eggs , I've

I wrote recently about how the collection of good, fruitful open problems is now being mined in a non-renewable fashion, leading to the potential scenario of th

On the Navier–Stokes Millennium Prize Problem Impressive result from OpenAI, who used an unreleased model to produce a resolution to the Navier–Stokes existence

Introducing ChatGPT Images 2.5 OpenAI's image generation models are apparently used "more than 3 billion images across ChatGPT Images and the GPT‑Image models i

Release: llm 0.35 New OpenAI model: gpt-6-astra for GPT-6 Astra . Tags: openai , llm , gpt-6-astra

Creepy crawlies Konstantin Ryabitsev discusses how bad the "background radiation" of abusive crawlers has become from the perspective of git.kernel.org , the of

The strongest argument I see for continuing to train much smarter models quickly is the need to build defensive systems against the dangers posed by other AI. [

Tool: Video compressor I recorded a short demo video of my Equal Earth animation on my phone and wanted to publish an optimized version of that video (using FFM

Tool: Mercator ↔ Equal Earth I got curious about the Equal Earth map projection that was recently voted on at the UN so I had GPT-6 Astra (medium) in ChatGPT Wo

Research acceleration: The view inside OpenAI Apparently today is RSI day at OpenAI, for Recursive Self-Improvement - I think it's their new AGI. Both this piec

The purpose of DNS is to spread scams Terence Eden shares some daunting statistics in support of his take that "the Domain Name System's purpose seems to be a v

My comment on There's No Limit to How Bad Code Can Get — Lobste.rs. [In reply to a comment about burning it down to start from scratch when technical debt

If you continue to add floors and rooms to a building forever, it will collapse. Software faces no such constraint. The code can always get worse. There can alw

Introducing GPT-6 Astra for developers Blink and you'll miss it, but there's a familiar creature at 1m59s : Across the board, Astra has more attention to detail

TIL: Using Blender with coding agents on macOS I've been having fun with Blender in ChatGPT Codex on my Mac recently. Getting it to work with coding agents is r

I got access to GPT-6 Astra this afternoon, so naturally I used it to generate SVGs of pelicans riding bicycles - at low, medium, high, xhigh and max reasoning

Here we go again... Discovery of a new OpenAI agent message board by Sydney Von Arx, Cormac Slade Byrd, Spencer Kitts, and Thomas Larsen describes the latest ac

The August edition of my sponsors-only monthly newsletter is out. If you are a sponsor (or if you start a sponsorship now) you can access it here . This month:

Release: llm-openrouter 0.7.1 Performance fix for loading OpenRouter models. Thanks, waveplate . #59 Tags: llm , openrouter

Release: llm 0.34 One new feature: llm logs --usage Markdown output now includes the response duration in milliseconds and as a human-readable duration. llm log

Release: llm-anthropic 0.28 Claude Fable 5.1 , reasoning traces are now displayed by default for models that support them, plus a new llm_anthropic.ClaudeRefusa