30 June 2026

N.S.A. Lost Access to Powerful A.I. Model Amid Anthropic Dispute

The New York Times  |  Dustin Volz, Julian E. Barnes

The National Security Agency (N.S.A.) has lost access to a powerful A.I. model developed by Anthropic, U.S. officials confirmed, due to the Trump administration’s dispute with the start-up. This action deprived the N.S.A. of a critical tool highly effective at identifying software weaknesses. The Trump administration imposed export controls on Anthropic this month, citing national security concerns, which forced the company to halt the release of its advanced models, Mythos 5 and Fable 5.

N.S.A. cybersecurity analysts had been testing versions of Anthropic’s tools, finding them impressive. Senator Mark Warner stated that N.S.A. chief Gen. Joshua Rudd reported Mythos "broke into almost all of our classified systems, not in weeks, but in hours," highlighting the administration's increasing reliance on advanced A.I. for cybersecurity despite battling a leading U.S. developer.

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