I Tested Claude Fable (Mythos) for 24 Hours — It’s REALLY Insane

I tested Claude Mythos for 24 hours in real-world coding scenarios — not just with small toy prompts, but on actual projects where the results really matter. For this test, I used Claude Mythos on three different things: First, my own small game project, where I wanted to see how well it handles architecture, code structure, debugging, and iteration. Then, I tested it on a website, focusing on UI improvements, frontend structure, refactoring, and practical web development workflows. And finally, I used it for a load test scenario, where response times increased, errors went up, and the system started to break under pressure. I wanted to see whether Claude Mythos could help analyze the results and suggest useful improvements. The big question for me was simple: Is Claude Mythos just another hyped AI model — or does it actually feel different when you use it in real coding work? In this video, I show what worked well, where it surprised me, where it still had weaknesses, and whether I would use it in my daily development workflow. Timestamps: 0:00 Introduction to Claude Fable 0:39 Project 1: C&C Clone 3:07 Iron Dawn Demo Gameplay 4:05 Project 2: Website Rework 6:42 Project 3: Loadtest Debugging