Models
June 13, 2026

Anthropic suspends Fable 5 and Mythos 5 access amid national security concerns

Anthropic is expanding access to Claude Mythos through trusted access programs, enabling cybersecurity experts and researchers to safely use advanced AI capabilities for critical security and scientific applications.

Anthropic has announced expanded access to Claude Mythos through a broader trusted access program designed for cybersecurity professionals, critical infrastructure providers, and select research organizations.

The initiative builds on Project Glasswing, where advanced AI models have already been used to identify software vulnerabilities and strengthen security systems. Anthropic states that Mythos offers industry-leading cybersecurity capabilities and has demonstrated value in both software security and scientific research.

By gradually expanding access to qualified organizations while maintaining safeguards, Anthropic aims to balance the benefits of powerful AI systems with responsible deployment and safety considerations.

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