OpenAI Briefs Governments On New Cyber AI Model Amid Anthropic Claude Rivalry

OpenAI met with 50 cyber defense practitioners across various federal agencies, state governments, and Five Eyes allies to unveil its new GPT-5.4-Cyber model.

The artificial intelligence company held an event in D.C. on Tuesday to demo the capabilities of this new cyber model, which debuted as a tiered access program last week, Axios reported.

The model will be deployed through a dual-track approach, with one version broadly accessible and equipped with strong safeguards, and a separate, more cyber-capable version reserved for defenders via the Trusted Access program.

The pilot program was announced in February in an effort to "enhance baseline safeguards for all users while piloting trusted access for defensive acceleration."

The model will also be available via an "intelligence-sharing partnership" that includes Australia, Canada, New Zealand, and the U.K., Axios noted.

GPT-5.4-Cyber rivals Anthropic's Claude Mythos Preview, a model which is used to hunt and fix software flaws in an effort to "reshape" cybersecurity.

Anthropic expanded access to Mythos to more than 40 additional organizations involved in critical software infrastructure, covering both proprietary and open-source code.

This move comes as AI capabilities surrounding cybersecurity have reached a "tipping point." Government officials have recently raised concerns that artificial intelligence tools could be misused to disrupt critical infrastructure such as financial systems or power grids.

Both OpenAI and Anthropic have engaged with government agencies (including defense and public-sector organizations) to deploy or evaluate AI systems in controlled settings, often with a focus on security, safety, and sensitive use cases.

It was recently reported that the U.S. National Security Agency (NSA) is allegedly using Anthropic's restricted artificial intelligence model, Claude Mythos Preview, for cyber defense despite the Pentagon blacklisting the company by designating it a supply chain risk.

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