OpenAI has agreed to provide the European Union (EU) with access to its latest cyber model. However, Anthropic reportedly remains reluctant to release its Mythos to the EU.
The Sam Altman-led company has decided to grant access to its GPT-5.5-Cyber model to EU partners, including businesses, governments, and EU institutions, reported CNBC on Monday. The model is currently in a limited preview phase for vetted cybersecurity teams, it said.
Head of OpenAI for Countries, George Osborne, emphasized the need for collaboration in cybersecurity, saying advanced AI-powered cyber defense tools should be accessible to Europe's broader community of defenders, not just a select few.
EU Commission Spokesperson Thomas Regnier appreciated OpenAI’s transparency and confirmed further discussions around access to the model this week. “This will allow us to follow deployment of the model very closely, and address security concerns,” he told CNBC.
Anthropic, however, has not yet agreed to provide the EU with access to its Mythos model, which was launched a month ago and has raised concerns about potential cyberattacks on critical software, the report said.
Regnier confirmed ongoing discussions with Anthropic, but noted they are at a “different stage” than those with OpenAI. He revealed that the Commission had held “four or five” meetings with Anthropic, but the discussions were “not yet at the same stage as the solution we have on the table from OpenAI.”
Anthropic did not immediately respond to Benzinga’s request for comment.
AI, Cloud Rules Face Sovereignty Push
The development comes as the EU has been considering regulations to limit its member governments' use of U.S. cloud providers for managing sensitive data, as part of its "Tech Sovereignty Package.” Officials said the main proposal under discussion would require certain sectors to use European-based cloud infrastructure, a move that could affect cloud providers from third countries, including the U.S.
In the U.S., the Center for AI Standards and Innovation (CAISI) under the Department of Commerce has been conducting risk evaluations on AI models before their public deployment. Microsoft Corp. (NASDAQ:MSFT), Alphabet Inc.‘s (NASDAQ:GOOGL) Google, and Elon Musk's xAI have agreed to grant the U.S. government early access to their latest artificial intelligence models to allow preliminary national security risk assessments.
OpenAI Expands Cybersecurity Push
On Thursday, OpenAI introduced a limited preview of GPT-5.5-Cyber for cybersecurity defenders, offering stronger verification and account-level controls for sensitive workflows. While built to allow more flexibility for security-focused tasks, the new OpenAI model is not meant to significantly enhance cyber capabilities beyond GPT-5.5.
The launch comes after Anthropic introduced Claude Mythos Preview, a model designed to detect and fix software vulnerabilities. OpenAI said it developed the model with safeguards and controlled access informed by consultations with cybersecurity and national security experts.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
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