Anthropic to Provide EU Access to Advanced Mythos AI Model

Jun 1, 2026

AI firm Anthropic is granting the European Union access to its advanced Mythos model after months of requests from the bloc over cybersecurity concerns. The model excels at finding thousands of unknown software vulnerabilities, sparking fears of misuse by bad actors. The deal required permission from the U.S. government, which is reportedly hesitant to share powerful AI with other nations to maintain its technological dominance.

Anthropic Mythos EU access agreement

▪The EU had sought access to Anthropic's Mythos model for months due to cybersecurity concerns.
▪The EU had previously been granted access to OpenAI's GPT-5.5-Cyber model in May.
▪The official terms and conditions of the EU's access to Anthropic's Mythos model are not yet clear.
▪Anthropic is sharing access to its advanced artificial intelligence model, Mythos, with the European Union.

US government AI export restrictions

▪Anthropic informed the European Commission that it required U.S. government permission to grant access to its Mythos model.
▪In May, the Trump administration secured agreements with Google DeepMind, Microsoft, and xAI to assess their AI models before public release.
▪The U.S. government is reportedly against sharing powerful AI models with non-U.S. governments to maintain its leadership in the field.

Mythos cybersecurity vulnerability detection

▪Anthropic's Mythos model is designed to excel at identifying security flaws and weaknesses in software.
▪Anthropic first released Mythos in April to a limited number of companies as part of its cybersecurity initiative, Project Glasswing.
▪The Mythos model is capable of uncovering thousands of previously unknown software vulnerabilities.

Cybercrime risks from bad actors

▪The Mythos model could be misused by malicious actors to accelerate cybercrime.
▪The release of Mythos in April raised concerns among governments, banks, and tech firms about its potential misuse.

EU diplomatic meetings with Anthropic

▪EU tech sovereignty spokesperson Thomas Regnier stated that a new wave of powerful AI models is coming to the market.
▪The European Commission confirmed it held "several productive meetings" with the American AI firm Anthropic.
▪In the week prior to the agreement, the EU increased discussions with the U.S. administration to gain access to Mythos.