OpenAI Unlocks Cybersecurity Model for Europe

German Financial Regulator Warns Sector to Step Up Defenses David Meyer • May 12, 2026

OpenAI is stepping up to do what arch-rival Anthropic still won't. The artificial intelligence firm will give European authorities and companies access to its new vulnerability-finding AI model, so they can beef up their cybersecurity.

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On Monday, the European commission said OpenAI had agreed to let it poke around GPT-5.5-Cyber, which is the company's answer to Anthropic's Mythos Preview. At a press briefing, spokesman Thomas Regnier welcomed OpenAI's "transparency" and said the development would allow the EU executive body to "follow the deployment of this model very closely, but also to potentially address certain security concerns in a closer way."

There are still many details to be established, in talks that Regnier said will continue this week. One big question ...