People who know me well have a running theory that I never sleep. After spending my “free time” working through Anthropic’s Claude Mythos system card (all 200+ pages), I’m not sure I have strong evidence to refute that hypothesis. Occasionally something lands in the AI world that makes even seasoned security folks sit up a little straighter. Anthropic’s Claude Mythos Preview is one of those moments. Below is a grounded, security-minded take on what the model is, what it isn’