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Claude Mythos

Anthropic🇺🇸 United States
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Version History

previewmajor

Anthropic expands restricted preview to 150 additional organizations across 15+ countries, focusing on critical infrastructure sectors including utilities and healthcare. Public release remains delayed pending safety measures.

mythosmajor

Initial release limited to Project Glasswing partners. Public Mythos-class models planned for release within weeks of June 2, 2026.

Previewmajor

Claude Mythos is Anthropic's specialized model for cybersecurity vulnerability discovery, designed to identify critical flaws in operating systems, browsers, and software. The model shows improvements over Claude Opus 4.6 in reasoning, agent-based capabilities, and coding.

Coverage

model releaseAnthropic

Anthropic invites 150 more organizations to Claude Mythos preview, citing cybersecurity risks

Anthropic has invited approximately 150 additional organizations to Project Glasswing, its restricted preview program for Claude Mythos. The company continues to withhold public release of the frontier model due to its advanced capability to find and exploit software vulnerabilities, which Anthropic claims can surpass all but the most skilled human security researchers.

2 min read
anthropicclaude-mythoscybersecurity
model releaseAnthropic

Anthropic expands Claude Mythos cybersecurity program to 150 new partners, promises public release in weeks

Anthropic is expanding its Project Glasswing cybersecurity initiative to approximately 150 new organizations, including Samsung and NATO, bringing the total to around 200 partners across 15+ countries. The company says it will release Mythos-class models to all customers within weeks, following the April unveiling of Claude Mythos which was initially limited to select partners like Apple.

2 min read
anthropicclaude-mythosproject-glasswing
model releaseAnthropic

Anthropic unveils Claude Mythos model, finds thousands of OS vulnerabilities via Project Glasswing

Anthropic has unveiled Claude Mythos, a new AI model designed for cybersecurity that has already discovered thousands of high-severity vulnerabilities in every major operating system and web browser. The model is being distributed as a preview to over 40 organizations and major technology partners including Apple, Google, Microsoft, and Amazon Web Services through Project Glasswing, a coordinated cybersecurity initiative.

2 min read
anthropicclaude-mythoscybersecurity