Even as AI models become more commonplace, it needs to be internalized that they differ from traditional computing in some significant ways. “The way to think about it is almost like a living creature, like a something more organic. It’s a thing where every model generation, it behaves differently. Cherny described them as the one artifact that persists across model generations, with the caveat that even they have a shelf life. He has talked about running multiple Claude sessions in parallel across git worktrees, and more recently about writing loops to prompt Claude Code rather than writing code directly himself.