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IA Programmation
Any Nix package, live in your browser
IA Programmation

Any Nix package, live in your browser

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 Linux virtual machine running entirely in your browser through WebAssembly. That VM can then be booted with any Nix package from the past 13 years. They are URL addressable, so you can navigate to this page: https://trynix.dev/?pkg=python3%403.6.2 Then click "Load" and get an interactive shell against a virtual machine running Python…

Simon Willison's Weblog
Native is now the future of mobile at Shopify
IA Programmation

Native is now the future of mobile at Shopify

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 exact reason you would expect: We decided to switch from native to React Native in 2020 for three reasons: Stop building the same features twice Allow developers to work across the stack Spend less time chasing feature parity and more time shipping value [...] Native still means building and maintaining software on two platforms, that cost…

Simon Willison's Weblog
Quoting Calif Research
IA Programmation

Quoting Calif Research

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 answer the call, or interact with their phone at all. Even if they do answer, they hear nothing, and the exploit still succeeds. [...] Working with AI, our team found the bug and wrote the first remote code execution (RCE) exploit in about two days. Building the worm took one more week. A worm at this scale used to be the kind of thing that…

Simon Willison's Weblog
.blend URL Viewer
IA Programmation

.blend URL Viewer

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 always thought it would be fun to make some new ones that celebrate popular culture. Yesterday I decided to try out the new ChatGPT Images 2.5 by running this prompt: Generate a photo of a faberge egg that's themed after the TV show Pluribus - research first It gave me this - honestly not bad for a first attempt! Then, just to see what…

Simon Willison's Weblog
Quoting Terence Tao
IA Programmation

Quoting Terence Tao

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 these problems becoming scarce. [...] We have now seen that even the rumor of someone working on a problem can trigger a massive amount of AI-powered effort to flatten it before the original research project has time to reach its full potential. The incentives may now be pointing in the direction of no longer sharing any promising research…

Simon Willison's Weblog
On the Navier–Stokes Millennium Prize Problem
IA Programmation

On the Navier–Stokes Millennium Prize Problem

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 and smoothness problem, one of the seven Millennium Prize Problems that have been subject to a $1,000,000 prize since May 24th, 2000. The discovery is somewhat overshadowed by accusations of skulduggery from Tristan Buckmaster, an NYU mathematics professor who was collaborating on related problems with Levent Alpöge, an accomplished…

Simon Willison's Weblog
Introducing ChatGPT Images 2.5
IA Programmation

Introducing ChatGPT Images 2.5

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 in the API". This latest release improves their instruction-following ability across multiple turns, responds faster, and "is better at preserving the subjects in your reference photos". There are two new model IDs in the API: gpt-image-2.5-sunburst and gpt-image-2.5-flare. Based on this I think Sunburst is the stronger option: Choose…

Simon Willison's Weblog
Creepy crawlies
IA Programmation

Creepy crawlies

Creepy crawlies Konstantin Ryabitsev discusses how bad the "background radiation" of abusive crawlers has become from the perspective of git.kernel.org, the official Git repository for the Linux kernel: TL;DR: we spend more CPU cycles rendering commits for scrapers than we spend on all other kinds of legitimate access, including git clones. At any one time, across 5 geo-distributed nodes, there are 14 CPU cores doing nothing but rendering git commits as html. I worry about this a lot from the…

Simon Willison's Weblog
Quoting Jakub Pachocki
IA Programmation

Quoting Jakub Pachocki

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. [...] We will need powerful, aligned AI for defense; to secure infrastructure, to protect against rogue agents in real time, and to invent entirely new protective measures. This will be a primary focus of OpenAI’s deployment efforts. At the same time, even with the uncertainty that comes from anticipated broad AI progress and the need to…

Simon Willison's Weblog
Video compressor
IA Programmation

Video compressor

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 FFMPEG) on my blog, so I had Claude Fable 5.1 in Claude Code for web build me this tool using the WebAssembly build of FFMPEG. Tags: ffmpeg, video, webassembly, claude, claude-code, claude-mythos-fable

Simon Willison's Weblog
Research acceleration: The view inside OpenAI
IA Programmation

Research acceleration: The view inside OpenAI

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 piece and the new essay An Alien Mind (by Chief Scientist Jakub Pachocki) talk about it, and this one doesn't even bother to expand the acronym. Included are details on how OpenAI's own research team are using coding agents. Like pretty much everyone else 2026 has been the year that agentic engineering really took off at OpenAI, best…

Simon Willison's Weblog
The purpose of DNS is to spread scams
IA Programmation

The purpose of DNS is to spread scams

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 vector for criminals to run scams on people at a terrifyingly high rate". On this Interisle report (via Andrew Campling), Terence says: It says 85 million new registrations of gTLDs were made in 2025. Of those 8.5 million were added to blocklists by May 2025. It reckons that a 10% abuse rate is the likely floor for these numbers and it's…

Simon Willison's Weblog
There's No Limit to How Bad Code Can Get
IA Programmation

There's No Limit to How Bad Code Can Get

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 becomes overwhelming] In my experience it's so rare for that to work. You announce the old thing is irrecoverably drowning in tech debt. You spin up a team to rewrite it from scratch. Work begins. Meanwhile the old thing remains a moving target: it's running the core business, so changes are still necessary. The developers working…

Simon Willison's Weblog