Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra)
Named practitioner synthesis
#1468
- Topic
- unassigned (set during synthesis)
- First seen
- 2026-08-08 07:15:56
- Last seen
- 2026-08-08 07:15:56
Source raw items (1)
- Blog / Newsletter2026-08-08 07:15:53Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra)
<p><strong><a href="https://simonw.github.io/raccoon-heist-codex/">Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra)</a></strong></p> On Wednesday I wrote about <a href="https://simonwillison.net/2026/Aug/5/raccoon-heist/">One-shotting a Raccoon Heist game using Claude Fable 5</a>, where I had Claude Fable 5 build a full working game from a premise I generated with GPT-3 and DALL-E <a href="https://twitter.com/simonw/status/1555626060384911360">four years ago</a>.</p> <p>I decided to pose the <a href="https://simonwillison.net/2026/Aug/5/raccoon-heist/#the-fable-5-prompt">exact same prompt</a> to Codex Desktop running GPT-5.6 Sol Ultra - the mode where Sol makes <em>aggressive</em> use of sub-agents - to see how it would do.</p> <p>It produced a much better game! Here's <a href="https://simonw.github.io/raccoon-heist-codex/">Moonlight & Mayhem</a> - <a href="https://github.com/simonw/raccoon-heist-codex/">GitHub repository here</a>, including the <a href="https://