What it feels like to work with Mythos (oneusefulthing.org) AI

Ethan Mollick describes early hands-on experience with the Mythos-class Claude model (Claude 5 Fable), saying it outperforms other public models across tasks and can complete multi-hour, research-heavy work like generating a sophisticated isochrone map and building a research analytics tool (“Concord”) after being given ambitious instructions and limited feedback.