Anthropic's Fable 5 and Mythos 5 models cleared for global release after export control lift

Anthropic has announced the lifting of US export controls on its Claude Fable 5 and Claude Mythos 5 models, which were imposed on June 12 due to concerns about potential misuse in identifying and exploiting software vulnerabilities. Fable 5 will be globally available starting July 1, with Mythos 5's access being expanded to select US organizations. Anthropic is also collaborating with industry partners and the US government to develop a shared framework for assessing and mitigating AI model "jailbreaks." AI

IMPACT The lifting of export controls and Anthropic's collaboration on safety frameworks signal a path toward broader, safer AI model deployment.

RANK_REASON Frontier-lab model release with system card and regulatory action. [lever_c_demoted from frontier_release: ic=1 ai=1.0]

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• Amazon
• Anthropic
• Claude Fable 5
• Claude Haiku 4.5
• Claude Mythos 5
• Claude Opus 4.6
• Claude Opus 4.7
• Claude Opus 4.8
• Claude Sonnet 4.6
• Google
• GPT-5.4
• GPT-5.5
• Kimi K2.7
• Microsoft
• US government

• model release
• policy

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