Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me
7th April 2026
Anthropic didn’t release their latest model, Claude Mythos (system card PDF), today. They have instead made it available to a very restricted set of preview partners under their newly announced Project Glasswing.
The model is a general purpose model, similar to Claude Opus 4.6, but...
The strongest version of this narrative is that Anthropic is acting responsibly by restricting access to a model with unprecedented offensive cybersecurity capabilities, giving the industry time to fortify defenses. The evidence—such as Mythos Preview’s ability to chain vulnerabilities and discover decades-old bugs—supports the claim that AI-driven vulnerability research has reached an inflection point. The inclusion of major tech firms and open-source organizations as partners lends credibility...
