Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra)
Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra) On Wednesday I wrote about One-shotting a Raccoon Heist game using Claude Fable 5 , where I had Claude Fable 5 build a full working game from a premise I generated with GPT-3 and DALL-E four years ago . I decided to pose the exact same prompt to Codex Desktop running GPT-5.6 Sol Ultra - the mode where Sol makes aggressive use of sub-agents - to see how it would do. It produced a much better game! Here's Moonlight & Mayhem - GitHub r
Record details
Published: 7 August 2026
Source: Simon Willisons Weblog
Category: Field notes
Topics: Agents & autonomy
Retrieved: 8 August 2026
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ethics.ai (7 August 2026), “Moonlight & Mayhem (Raccoon Heist by Codex + GPT-5.6 Sol Ultra),” evidence record 17508, https://ethics.ai/record/17508 (originally published by Simon Willisons Weblog).
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