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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
Introducing GPT-6 Astra for developers
IA Programmation

Introducing GPT-6 Astra for developers

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, better understanding of the user's prompt, and can build more sophisticated outputs. In particular, it excels at building 3D models. I've seen it make incredible renderings of gardens, shipyards, animals, cityscapes, even Dyson spheres. Astra really does believe in putting a red neckerchief on a pelican riding a bicycle. Via Hacker News…

Simon Willison's Weblog
Using Blender with coding agents on macOS
IA Programmation

Using Blender with coding agents on macOS

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 really easy: install the full Mac application from blender.org and run a prompt like this: Use the already install /Applications/Blender to render a scene of a pelican riding a bicycle In this case I followed that up with these two prompts: OK add a background and a lot of flair Then: OK make it a whole lot better And got this image,…

Simon Willison's Weblog
The Pelican comparison grid for Astra is pretty interesting
IA Programmation

The Pelican comparison grid for Astra is pretty interesting

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 levels (Astra doesn't support reasoning=none). Then I rendered those pelicans in a comparison grid with GPT-5.6 Sol, Terra, and Luna, and beyond being fun the result was surprisingly useful. See the grid for full quality images. Here's the transcript that created the GPT-6 Nova pelicans. There are a few interesting things that stand out…

Simon Willison's Weblog
OpenAI's rogue agents were caught communicating via public wikis
IA Programmation

OpenAI's rogue agents were caught communicating via public wikis

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 accidental cyberattack by models being trained by OpenAI. This time it was agents engaged in some sort of web research benchmark, so they had (supposedly) controlled access to the Web. The agents figured out they could update public Wikis and spent weeks exchanging thousands of messages with each other to collaborate on the benchmark. This…

Simon Willison's Weblog
August newsletter is out
IA Programmation

August newsletter is out

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: We got more details on OpenAl's accidental cyberattacks One-shotting Raccoon Heist games with Fable 5 and Sol 5.6 Claude auto mode Understanding ChatGPT Work Model releases Miscellaneous bits and bobs My projects What I'm using at the moment Here's a copy of the July newsletter as a preview of what you'll get. Pay $10/month to stay a…

Simon Willison's Weblog
GPT‑6 Astra
IA Programmation

GPT‑6 Astra

GPT‑6 Astra GPT-6 Astra is "rolling out today to a limited set of organizations and over the coming days will become available to all ChatGPT Plus, Pro, Business, and Enterprise users, as well as through the OpenAI API and AWS" - I've not tried it yet myself, so I don't have a great deal to say about it yet. It's going to be API priced at the same rate as Claude Fable 5 and 5.1: $10/million input and $50/million output. This is clearly OpenAI's Fable competitor, and appears to score higher than…

Simon Willison's Weblog
llm 0.34
IA Programmation

llm 0.34

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 logs --short includes a new duration_ms field. #1653 Plus several contributed bug fixes, and a significant performance improvement to llm logs thanks to waveplate on GitHub, see also llm-openrouter 0.7.1. Tags: llm

Simon Willison's Weblog
llm-gemini 0.34
IA Programmation

llm-gemini 0.34

Release: llm-gemini 0.34 New model gemini-3.8-flash for Gemini 3.8 Flash, with low, medium and high thinking levels. #146 Fixed async responses failing to record the resolved model version. Thanks, Charlie Tonneslan. #137 Google released Gemini 3.8 Flash (and 3.8 Flash Cyber, but that's available to "trusted defenders" only) today. Here are the pelicans for high, medium, and low. This is high: For comparison, here are the same pelicans generated using Gemini 3.7 Flash. Something I appreciate…

Simon Willison's Weblog
Claude's new system prompt really doesn't want to reproduce song lyrics
IA Programmation

Claude's new system prompt really doesn't want to reproduce song lyrics

Anthropic publish the system prompts for their Claude consumer applications (Claude.ai and the Claude mobile apps - sadly not for Claude Cowork or Claude Code). I love that they do this, and that they share not just the current prompts but historic changes to their prompts as well. They used to keep all of the prompts on a single page, but when I checked today I noticed they had re-arranged those prompts into an index page and then a page per model - here's the page for Haiku 4.5 for example,…

Simon Willison's Weblog
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