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The State Department has shifted the model underpinning its internal chatbot, StateChat, from Anthropic’s Claude Sonnet 4.5 to OpenAI’s GPT-4.1, according to an internal document obtained by Nextgov/FCW.The document also indicates that less data is available to StateChat users, at least temporarily. The new model has only been trained on data…

The Department of Homeland Security plans to install AI upgrades in 148 of its uncrewed camera towers on the U.S. border this year, and to add another 50 next-generation ones. On Wednesday, GDIT unveiled its pitch for the job: the Relocatable Autonomous Surveillance Tower.GDIT, which provided 200 of the existing…

Key refueling-related tests for the B-21 Raider are now underway, an Air Force spokesperson confirmed to Defense One, the latest milestone towards delivering the next-generation bomber by 2027.On Tuesday, several open-source intelligence accounts and plane spotters posted images of a B-21 approaching a KC-135 tanker over California. One account cited…

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