EU regulator ENISA receives the most powerful cyber models, Claude Mythos 5 and GPT-6 Astra, for review
Prepared by Sintelligent with the help of SI. Publication time restored from the build log. . Updated: .
Governments are starting to test frontier models themselves instead of taking companies at their word — it is important that such checks build trust rather than turn into a brake.
The European Commission confirmed that the EU cybersecurity agency is testing both models for vulnerabilities. Anthropic agreed in principle back in June to give access to Mythos after pressure from members of the European Parliament (30 of them wrote a letter in May), while the agency received Astra about a week after its September 3 release. This is one of the first practical applications of Article 55 of the AI Act, which allows the regulator to examine models itself rather than rely on company reports.
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