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The Pentagon is planning for AI companies to train on classified data, defense official says

MIT Technology Review / 3/18/2026

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Key Points

  • The Pentagon is discussing plans to create secure environments that would let generative AI companies train military-specific models on classified data.
  • Private vendors could host training in controlled, classified settings to produce defense-focused AI capabilities.
  • Some AI models, such as Anthropic's Claude, are already used to operate on classified data to answer questions and analyze targets in restricted environments.
  • The move signals a broader push to incorporate AI vendors into defense data workflows, with security and compliance at the forefront of implementation.
The Pentagon is discussing plans to set up secure environments for generative AI companies to train military-specific versions of their models on classified data, MIT Technology Review has learned.  AI models like Anthropic’s Claude are already used to answer questions in classified settings; applications include analyzing targets in Iran. But allowing models to train on…