ChatGPT and Grok join the military's AI platform for more than three million personnel
The U.S. Department of War has added versions of ChatGPT and Grok to GenAI.mil alongside Gemini, bringing three competing commercial AI families into a platform designed for more than three million personnel. The department describes Grok for Government as offering adaptive reasoning, persistent projects, workspaces, and reusable playbooks. ChatGPT Mil supports chat, files, projects, custom GPTs, and document-heavy unclassified work across planning, policy, logistics, and administration. Gemini was previously cleared at Impact Level 5 for controlled unclassified information. A multi-model platform can reduce dependence on one vendor, let users compare results, and match systems to different tasks. It also multiplies the assurance burden. Models can differ in refusal behavior, data retention, tool permissions, update timing, provenance, and how confidently they present an error. The department's daily-adoption push therefore needs model-specific evaluations, documented data-flow boundaries, protected incident reporting, and logs that allow a decision to be reconstructed across vendors. A comparison interface should surface disagreement rather than averaging it away. Most importantly, describing AI as a teammate cannot obscure the command chain. Every consequential recommendation and action must remain owned by an identifiable human with the information and authority to challenge or stop the system.