Custom ChatGPT and Grok variants enter the GenAI.mil portal after more than 1.7 million defense users onboarded.
The Pentagon has added custom versions of OpenAI’s ChatGPT and xAI’s Grok to GenAI.mil, its secure portal for 3 million civilian and military personnel. The two new tools, ChatGPT Mil and Grok for Government, join Google Gemini in the centralized portal and give defense employees access to commercial frontier AI models without sending sensitive data through consumer channels.
GenAI.mil launched last year with Google Gemini and has now onboarded more than 1.7 million unique users from the department’s 3 million personnel. OpenAI built ChatGPT Mil through its OpenAI for Government program, and Grok for Government comes from SpaceX’s Starshield AI. The Pentagon excluded Anthropic after the Trump administration labeled the lab a supply-chain risk for demanding safety guardrails.
Builders and operators get official military versions that bypass consumer-grade data collection and keep sensitive data in a secure portal. ChatGPT Mil handles chat, files, projects, custom GPTs, and document-heavy unclassified work such as administrative tasks, logistics, planning, and policy. Grok for Government targets faster mission execution, from market research to supply chain management.
The new tools will gain more features over time, and the Pentagon has also struck deals with vendors including AWS, Microsoft, NVIDIA, and Reflection AI. OpenAI, xAI, and Google are now inside the portal, while Anthropic challenges its supply-chain risk label in court. Watch whether Anthropic regains access and how these tools affect defense and enterprise AI adoption.
What matters
- The Pentagon added ChatGPT Mil and Grok for Government to its secure GenAI.mil portal.
- Builders can integrate familiar ChatGPT and Grok tools into routine unclassified defense work.
- Watch whether Anthropic resolves its Pentagon dispute or remains locked out of the GenAI.mil portal.
Why it matters
Watch whether Anthropic resolves its Pentagon dispute or remains locked out of the GenAI.mil portal.
This GenAI News article was prepared in original wording using reporting and materials published by TechCrunch AI. Source reference: https://techcrunch.com/2026/08/31/the-pentagon-now-has-its-own-version-of-chatgpt-and-grok/.
Drafted by the GenAI News review pipeline.