Anthropic limits Mythos Preview to defense partners under Project Glasswing

Anthropic has limited Mythos Preview to select partners under Project Glasswing, granting access to more than 50 tech organizations with over $100 million in usage credits to identify and fix software vulnerabilities. The model reportedly detects thousands of high- to critical-severity bugs and can chain exploits to breach systems, prompting guarded optimism about defense benefits but raising safety concerns about a broader public release. Anthropic has briefed the U.S. government; the system card says Mythos Preview is not generally available. Many experts say results are preliminary and the potential for misuse remains a key worry.