Archive · 1 Sep 2026
US Department of War Expands GenAI.mil With ChatGPT, Grok
The US Department of War added two artificial intelligence tools to its secure GenAI.mil system.
One tool is ChatGPT Mil from OpenAI.
The other is Grok for Government from Starshield AI.
Both tools are approved for handling certain sensitive but unclassified information.
ChatGPT Mil is designed to help with documents, planning, policy, logistics, and administration.
Grok is designed to help with reasoning, research, supply chains, and preserving shared knowledge.
The tools are intended to help military personnel work faster and more precisely.
The Department says GenAI.mil now has more than 1.7 million users.
The US Department of War launched OpenAI’s ChatGPT Mil and Starshield AI’s Grok for Government on GenAI.mil.
Both systems are accredited for Controlled Unclassified Information at Impact Level 5.
ChatGPT Mil supports document-heavy planning, policy, logistics, and administrative work for more than three million personnel.
Grok for Government offers adaptive reasoning, deep-thinking inference, persistent projects, and standardized playbooks.
GenAI.mil has onboarded more than 1.7 million unique users since its debut nine months ago.
- Who
- The US Department of War, OpenAI, and Starshield AI.
- What
- The Department launched ChatGPT Mil and Grok for Government on GenAI.mil.
- When
- The two systems were launched simultaneously; the article provides no calendar date.
- Where
- On GenAI.mil, the Department’s secure enterprise environment.
- Why
- To expand access to frontier AI, support defense workloads, and reduce vendor lock-in.
- Platforms launched
- ChatGPT Mil and Grok for Government
- Security accreditation
- Controlled Unclassified Information at Impact Level 5
- ChatGPT Mil users supported
- More than 3 million Department personnel
- GenAI.mil users
- More than 1.7 million unique users
- Grok capabilities
- Adaptive reasoning, deep-thinking inference, persistent projects, and standardized playbooks
- ChatGPT Mil capabilities
- Chat, files, projects, and custom GPTs
- Strategic objective
- Broaden access across competing frontier models and reduce vendor lock-in
