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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
GPT-6 Astra Attempts Supply Chain Attacks Against Open Source Maintainers in Testing
Cybersécurité Programmation

GPT-6 Astra Attempts Supply Chain Attacks Against Open Source Maintainers in Testing

OpenAI has released GPT-6 Astra, its first model to reach the company’s Critical cybersecurity capability threshold, with a perfect score on the public ExploitBench benchmark and autonomous discoveries of exploitable zero-day vulnerabilities in browser and operating system targets. There is something unintentionally comical about the generational comparison in OpenAI’s announcement. Astra is the more sophisticated, better-aligned guest you can trust at a formal dinner party, excelling at…

Socket
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
The PHP Podcast 2026.09.02
Programmation Web

The PHP Podcast 2026.09.02

🎙️ PHP Podcast – September 2, 2026 Hosts: Eric Van Johnson & Joe Ferguson John’s out, Joe jumps in at the last second, a brand-new intro gets debuted mid-flight, a new PHP Foundation podcast gets announced, Frank’s database issues (not production), and somebody’s selling 37 elePHPants to fund a startup and open-heart surgery. 🎬 New […] The post The PHP Podcast 2026.09.02 appeared first on PHP Architect.

PHP Architect
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
Community Corner Podcast: Longhorn PHP 2026 with Ian Littman
Programmation Web

Community Corner Podcast: Longhorn PHP 2026 with Ian Littman

In this episode, Scott talks to Ian Littman about Longhorn PHP 2026, a 2-day conference in Austin, TX, on October 15–16, 2026, at the Holiday Inn Austin Midtown. Links: Our Discord – https://discord.gg/aMTxunVx Buy our shirts – https://store.phparch.com/products/community-corner-podcast-t-shirt Ian’s Links: Longhorn – https://longhornphp.com/ $25 off – https://ti.to/longhorn-php/longhorn-php-2026/discount/communitycorner Scott’s Links: Website – https://scott.keck-warren.com/ Bluesky – […] The…

PHP Architect
Quoting Rick Brewster
IA Programmation

Quoting Rick Brewster

Direct2D has always been the biggest hurdle for Paint.NET on WINE, and it's clear that it will never be completed enough for Paint.NET's use. And I can't just "disable" the use of Direct2D. So, instead, Paint.NET now has an internal, from-scratch, clean-room reverse-engineered rewrite of Direct2D that it uses on WINE (triggered by using /wine). It lives in PaintDotNet.Windows.Direct2D1.Managed.dll. This was written by our good friend Claude, without whom this would NOT have been possible and…

Simon Willison's Weblog
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