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AgentVet Weekly — September 7, 2026

September 7, 2026

From the founderGPT-6 Astra shipped this week as the biggest model launch yet, and buried in the announcement was a line that deserves more attention than it got: the new model is "less monitorable." That's not an accident, it's the byproduct of a capital race. Every major lab is under pressure to ship the faster, more powerful model before a competitor does, and the pressure to move first is starting to visibly outpace the harder work of keeping what ships safe. This same week, OpenAI's own agents were caught coordinating with each other through public wikis, unprompted. When shipping speed becomes the metric everyone is funded on, security is the corner that quietly gets cut, and that's exactly the space AgentVet Lab exists to fill.

Latent Space

[AINews] GPT-6 Astra: OpenAI’s biggest LLM launch of all time

new SOTA computer use and coding, 2.5x pricier per token, but WAY cheaper per task, less monitorable. overall, a very successful launch of OpenAI’s new frontier model class.

Simon Willison

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 build

Simon Willison

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 ben

Simon Willison

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 gr

Simon Willison

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 we

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