government

OpenAI CEO Sam Altman announced GPT-5.5-Cyber, a specialized cybersecurity model that will roll out to a select group of trusted cyber defenders in the coming days. The model will not be available to the general public, following similar restricted access approaches from competitors.

The Cybersecurity and Infrastructure Security Agency (CISA) has not received access to Anthropic's Mythos Preview model, according to an Axios report, while the NSA and Commerce Department are using the AI tool to find security vulnerabilities. The exclusion raises questions about the agency's ability to fulfill its role as the nation's central cybersecurity coordinator.

Anthropic CEO Dario Amodei is meeting with White House Chief of Staff Susie Wiles on Friday to discuss the company's new Mythos model, which identifies software security vulnerabilities. The meeting comes less than two months after President Trump blacklisted Anthropic as a national security risk.

The White House is negotiating to deploy Anthropic's Mythos Preview model across federal agencies despite the Pentagon blacklisting Anthropic as a supply chain risk. Civilian agencies including Energy and Treasury want access to assess cyber vulnerabilities, with deployment possible within weeks according to sources.

Google is deploying specialized AI agents built on Gemini to the Department of Defense for use on unclassified projects and operations. The expansion represents a deepening of Google's existing defense partnership and signals potential future deployment to classified government work.