Reposted by Shannon Byrnes
Wrote up some thoughts on Anthropic's Project Glassing, where their latest Opus-beating model is available to partnered security research organizations only. Given the recent alarm bells raised by credible security voices I think this is a justified decision.
simonwillison.net/2026/Apr/7/p...
simonwillison.net
Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me
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 …