The Frontier edition

The Frontier · 7 Sep 2026

7 Sep 2026 · 15 articles

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…

Summary published by Simon Willison's Weblog · 6 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 6 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 5 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 5 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 4 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 4 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 4 Sep 2026 · Read the original ↗

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…

Summary published by Simon Willison's Weblog · 3 Sep 2026 · Read the original ↗