OpenAI is beginning to make its cybersecurity-focused artificial intelligence model, GPT-5.5-Cyber, available to the federal government and its \u201ccritical cyber defenders.\u201d\u00a0<\/p>\n
First confirmed to CNN<\/a>, the availability of OpenAI\u2019s frontier cybersecurity model follows the announcement of Anthropic\u2019s newly released Mythos AI, a powerful frontier model distributed to select companies for testing via Anthropic\u2019s Project Glasswing<\/a>.\u00a0<\/p>\n Alongside GPT-5.5-Cyber release, OpenAI published a new Cybersecurity Action Plan<\/a> to help leverage AI as an asset in national defense cybersecurity operations, including pillars for democratizing access to cyber-capable AI models, coordinating responses between government and industry, and ensuring visibility and control of AI models during and after deployment.<\/p>\n \u201cAI is reshaping cybersecurity,\u201d OpenAI told\u00a0Nextgov\/FCW in a statement. \u201cThe same capabilities that help defenders are also being used by malicious actors. Some believe the answer is to tightly restrict advanced cyber capabilities to a very small group of approved partners. We believe the better path is responsible, trusted access for defenders so they can move faster than adversaries can adapt.\u201d<\/p>\n OpenAI added that its Cybersecurity Action Plan is focused on working alongside government\u00a0and private sector entities to support the diffusion of AI-powered defensive tools across trusted partners.\u00a0<\/p>\n On X<\/a>, OpenAI CEO Sam Altman added that the company wants GPT-5.5-Cyber to focus on securing critical infrastructure.\u00a0<\/p>\n OpenAI\u2019s diffusion of GPT-5.5-Cyber follows the company updating its contracts<\/a> with Microsoft and engaging with Amazon Web Services to offer its agentic tools and AI models across various cloud providers.\u00a0<\/p>\n The release of cyber-focused AI models from both OpenAI and Anthropic comes as the latter is wading through the fallout of a Pentagon supply chain risk designation after the company refused to allow its products to be used in autonomous weaponry or in the surveillance of Americans. A judge recently issued an injunction<\/a> on that designation and a White House directive to cease agency use of Anthropic products, though the government has said it plans to appeal.<\/p>\n