Can GenAI.mil be used for classified work?

GenAI.mil is certified only up to Impact Level 5, which covers controlled unclassified information — not classified material. When asked whether the tools may be used for intelligence analysis, targeting, weapons work or decisions involving force, a Pentagon official declined to say, repeating only that the portal handles controlled unclassified information at IL5.

How do ChatGPT Mil and Grok for Government differ?

ChatGPT Mil is aimed at document-heavy unclassified work — planning, policy, logistics, administration, travel forms and contracting — and carries chat, files, projects and custom GPTs. Grok for Government is pitched at deep-thinking inference with adaptive reasoning modes, customizable workspaces and reusable tools, covering tasks from acquisition research to supply-chain management.

Who can sign in to GenAI.mil?

GenAI.mil is open to about 3 million Department of Defense military members, civilians and contractors. More than 1.7 million unique users have already been onboarded since the portal launched last year, so the two new models arrive on a platform that is already in wide daily use rather than a fresh rollout.

Which model was on GenAI.mil before this?

Google's Gemini for Government was the first frontier model on GenAI.mil and remains available. DefenseScoop reports that GPT-5.6 Terra is coming to the portal to replace the GPT-5.4 Terra version currently in place, so all three vendors — Google, OpenAI and Starshield AI — now sit behind the same sign-in.

Pentagon · 2026-08-31 · major

ChatGPT Mil and Grok for Government — the Pentagon's AI portal adds two models

ChatGPT Mil and Grok for Government are now live on GenAI.mil, the Pentagon's secure portal for generative AI. Both cleared Impact Level 5 for controlled unclassified data and are open to the department's 3 million personnel.

The Pentagon building, illustrating the launch of ChatGPT Mil and Grok for Government

The Pentagon's GenAI.mil portal now runs ChatGPT Mil and Grok for Government next to Google's Gemini.

Quick facts

Platform	GenAI.mil
Went live	31 August 2026
New models	ChatGPT Mil (OpenAI) and Grok for Government (Starshield AI)
Already on the portal	Google Gemini for Government
Security level	Impact Level 5 — controlled unclassified information
Reach	3 million personnel; more than 1.7 million already onboarded
ChatGPT Mil scope	Planning, policy, logistics and administration

What is it?

ChatGPT Mil and Grok for Government went live on GenAI.mil on August 31, 2026. ChatGPT Mil comes out of OpenAI's government program; Grok for Government comes from Starshield AI. Google's Gemini for Government was already on the portal, so defense staff can now pick between three frontier vendors in one place.

How does it work?

GenAI.mil routes staff to commercial frontier models without sending sensitive government data through ordinary consumer apps. All three models cleared Impact Level 5, the authorization for storing and processing non-public, sensitive unclassified data. ChatGPT Mil carries chat, files, projects and custom GPTs; Grok adds adaptive reasoning modes and workspaces meant to hold institutional knowledge.

Why does it matter?

Three million military and civilian staff can now reach ChatGPT Mil and Grok for Government inside an approved environment, and more than 1.7 million have already signed on. That replaces unapproved consumer chatbots with a sanctioned option, and it puts two more vendors inside one of the largest single AI deployments in government.

Who is it for?

defense staff and government IT teams

Frequently asked questions

Can GenAI.mil be used for classified work?: GenAI.mil is certified only up to Impact Level 5, which covers controlled unclassified information — not classified material. When asked whether the tools may be used for intelligence analysis, targeting, weapons work or decisions involving force, a Pentagon official declined to say, repeating only that the portal handles controlled unclassified information at IL5.
How do ChatGPT Mil and Grok for Government differ?: ChatGPT Mil is aimed at document-heavy unclassified work — planning, policy, logistics, administration, travel forms and contracting — and carries chat, files, projects and custom GPTs. Grok for Government is pitched at deep-thinking inference with adaptive reasoning modes, customizable workspaces and reusable tools, covering tasks from acquisition research to supply-chain management.
Who can sign in to GenAI.mil?: GenAI.mil is open to about 3 million Department of Defense military members, civilians and contractors. More than 1.7 million unique users have already been onboarded since the portal launched last year, so the two new models arrive on a platform that is already in wide daily use rather than a fresh rollout.
Which model was on GenAI.mil before this?: Google's Gemini for Government was the first frontier model on GenAI.mil and remains available. DefenseScoop reports that GPT-5.6 Terra is coming to the portal to replace the GPT-5.4 Terra version currently in place, so all three vendors — Google, OpenAI and Starshield AI — now sit behind the same sign-in.