The European Commission has announced that it started formal talks, as of Wed., 15 April 2026, with the United States’ leading AI safety firm platform known as ‘Anthropic‘ on its latest innovative model, Claude Mythos. The discussions are centered on its unique cyber defense potential and the systemic threat it might hold.
This engagement comes after Anthropic put a hold on releasing Mythos, a model that they defined as “a public safety risk” because of its “extreme proficiency at autonomous hacking and bug finding”.
The “Mythos” Dilemma: A Double-Edged Sword
Claude Mythos is a major step up in technology from prior generations, such as Claude 3.5 or the recently released Claude 4.7. Internal testing by Anthropic has shown the model being able to autonomously traverse complex code bases, discover “zero-day” exploits, and be able to generate them as working exploits within hours.
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More significantly, the model is said to have discovered a 27-year-old serious flaw in the OpenBSD operating system that had eluded human security researchers for almost three decades. These functionalities are a godsend for defensive “red teaming”, but in the words of Anthropic, they are the very same logic that enables it to combine multiple bugs to circumvent the sandboxes of every popular web browser.
We’ve got a new AI that is being launched. There are many risks associated with it,” said European Commission spokesman Thomas Regnier. “We’ve been in contact with Anthropic… we’ve received some information and had a first meeting on Wednesday.”
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Project Glasswing and the EU AI Act
To counter these threats, Anthropic shifted its strategy from releasing a product (Project Glasswing) to a separate defensive initiative. Through this project, Mythos is currently only provided to a handful of around 40 major tech companies (e.g., Microsoft, Nvidia, and Amazon) and enables them to correct issues before the model’s power inevitably falls into the hands of malicious agents.
The fact that no European bodies were involved in this initial “vulnerability hardening” phase set alarm bells ringing in Brussels. European officials are believed to be demanding assurances that Europe’s critical infrastructure will not be left susceptible while American companies have a head start on defenses.
The debates also reference Anthropic’s submission on the EU GPAI Code of Practice, where they have stated their intention to subscribe to the code and have been voted to adopt it, prescribing a strong transparency and safety regime for models offering ‘systemic risks’, which is well covered by Claude Mythos.
A New Era of “Cybersecurity Gatekeeping”
The conversation represents a changing reality in which AI labs are more and more often becoming the world’s cybersecurity gatekeepers. To close this gap until Mythos is safe to be used on a wide scale, the company has just unveiled Claude Opus 4.7, a version of the standard Claude ecosystem which features autoregressive protections against missives requesting malicious hacking, essentially a “testbed” for the governance protocols the company is seeking to allay concerns from both EU oversight and wider security concerns.
By the time the EU AI Act comes into full effect in August 2026, the EU AI Act negotiations will almost certainly establish the examples of how “dual-use” AI models, which can be used for both unparalleled advancement and calamitous destruction, will be regulated worldwide.
