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The EU wants to regulate AI but needs OpenAI and Anthropic to let regulators through the door

Illustration accompanying: The EU wants to regulate AI but needs OpenAI and Anthropic to let regulators through the door

Europe's AI regulatory framework faces a critical enforcement gap: OpenAI has voluntarily granted the EU Commission access to GPT-5.5 Cyber for security audits, but Anthropic remains resistant after multiple regulatory meetings without granting inspection rights to its Mythos model. This divergence exposes a structural vulnerability in the EU's oversight strategy, which lacks legal teeth to compel frontier labs to submit systems for review. The asymmetry signals that regulatory credibility now hinges on corporate goodwill rather than binding authority, reshaping how Europe can actually enforce the AI Act's safety requirements.

Modelwire context

Analyst take

The more consequential detail buried in this story is that voluntary cooperation from OpenAI may actually weaken the EU's long-term position: if one lab cooperates and another doesn't without penalty, regulators have implicitly demonstrated that non-compliance carries no meaningful cost, which sets a precedent that future labs will price into their own decisions.

This is largely disconnected from recent activity in our archive, as we have no prior coverage to anchor it to. It belongs to a broader thread running through AI governance reporting over the past two years: the recurring gap between regulatory ambition and enforcement capacity, visible in debates over the AI Act's tiered obligations, the GPAI model provisions, and the question of whether Brussels can actually compel frontier labs headquartered outside the EU to submit to meaningful oversight. The OpenAI-versus-Anthropic split here is a concrete, named instance of that structural problem.

Watch whether the EU Commission moves to formalize access requirements under the AI Act's GPAI provisions within the next two legislative cycles. If Anthropic still hasn't granted inspection rights to Mythos by the time the first formal enforcement actions are filed against any frontier lab, that confirms voluntary cooperation is the ceiling, not the floor.

This analysis is generated by Modelwire’s editorial layer from our archive and the summary above. It is not a substitute for the original reporting. How we write it.

MentionsOpenAI · Anthropic · EU Commission · GPT-5.5 Cyber · Mythos · AI Act

MW

Modelwire Editorial

This synthesis and analysis was prepared by the Modelwire editorial team. We use advanced language models to read, ground, and connect the day’s most significant AI developments, providing original strategic context that helps practitioners and leaders stay ahead of the frontier.

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The EU wants to regulate AI but needs OpenAI and Anthropic to let regulators through the door · Modelwire