Pentagon Deploys ChatGPT Mil and Grok for Government to 3 Million Military Personnel

Pentagon AI Expands with ChatGPT Mil and Grok for Government

The Pentagon has launched custom versions of ChatGPT and Grok on its GenAI.mil portal, expanding AI capabilities for 3 million Department of Defense personnel1

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. The secure AI platform, which already counts 1.7 million unique users, now offers ChatGPT Mil from OpenAI and Grok for Government from Starshield AI alongside the existing Google Gemini integration2

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. These tools are specifically tailored to warfighter needs and designed to handle Controlled Unclassified Information at Impact Level 5 without sending sensitive government data through ordinary consumer channels3

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ChatGPT Mil Targets Document-Heavy Unclassified Military Use

ChatGPT Mil, part of OpenAI for Government, focuses on supporting document-heavy unclassified work across the Department of Defense personnel, including planning, policy, logistics, and administration4

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. The tool offers a familiar commercial experience with features including chat, files, projects, and custom GPTs, while keeping data within its secure environment and not using it to train models1

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. Joe Larson, vice president and head of government at OpenAI, stated that "ChatGPT on GenAI.mil will make unclassified work throughout the Department more efficient, freeing up time and resources so DoW personnel can focus on the mission"4

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. The deployment comes after OpenAI secured a defense contract worth up to $200 million to provide AI tools to the military4

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Grok for Government Delivers Advanced Capabilities to Enhance Mission Execution

Grok for Government, built on Starshield AI's secure satellite network using SpaceX's existing Starlink technology, provides advanced capabilities including deep-thinking inference, adaptive reasoning modes with Auto, Fast, and Expert options, customizable workspaces, persistent projects, and reusable playbooks that capture and scale institutional knowledge2

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. The Pentagon positioned Grok's capabilities in broader militaristic terms, stating it will provide "immediate productivity gains, stronger knowledge continuity and more secure and efficient collaboration"1

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. The tool enables the Joint Force to execute missions faster and with greater precision across numerous operational contexts, ranging from market research analysis for acquisition professionals to supply chain management for logisticians3

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. Pentagon Chief Technology Officer Emil Michael revealed that Grok allowed U.S. forces to deploy more than 2,000 munitions to 2,000 targets within 96 hours in the Iran war5

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AI Adoption Reflects Pentagon's AI-First Strategy

The deployment reflects War Secretary Pete Hegseth's push for AI to become part of the Pentagon's daily workflows, aligning with the White House's AI action plan stating "The United States must aggressively adopt AI within its Armed Forces if it is to maintain its global military preeminence"4

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. In his December memo announcing the GenAI.mil portal launch, Hegseth declared "The future of American warfare is here, and it's spelled AI," and directed "every member of the Department to log in, learn it, and incorporate it into your workflows immediately. AI should be in your battle rhythm every single day"4

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. The Department of Defense is turning to an AI-first strategy that will transform how it fights, thinks, and organizes to guarantee American dominance and security4

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Anthropic Absence Highlights Ongoing Dispute

Notably absent from the GenAI.mil portal is Anthropic's Claude model, highlighting the Pentagon's ongoing dispute with the frontier lab1

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. Anthropic was designated a supply chain risk by the Trump administration after it refused to give the Pentagon unrestricted use of its AI tools and instead insisted on certain safety guardrails against autonomous weapons systems and mass domestic surveillance2

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. Last week, U.S. District Judge Rita Lin ruled that the government's actions "constituted unlawful retaliation" in violation of Anthropic's First Amendment rights and that the company was denied due process required under the Fifth Amendment2

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. Other AI providers including OpenAI and Google have taken heed of the example made of Anthropic, allowing the Pentagon to use their models for "any lawful government purpose"3

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. The Pentagon's Chief Technology Officer said the department will be done completely removing Anthropic's platforms by the end of September5

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. The addition of multiple models helps the Pentagon avoid vendor lock-in while expanding operational efficiency across its workforce2

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