Over the weekend, I won #3 at OpenAI's GPT-5 Hackathon with Archon - a copilot for your computer. It comes with a mini vision model for speed, and GPT-5 for variable reasoning to plan. I took some time to write about how it works, and our approach to building a self-driving computer with inference math, and the tradeoffs we made.Archon is a small bar that sits at the bottom of your Mac/Windows screen where you can type what you want your computer to do in natural language. It takes screenshots t...