The following also comes from the New York Times:
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"While many of the uses of artificial intelligence to assist military operations on the ground are still in a developmental stage, the models are actively used for intelligence analysis. Forcing Claude off government computers would hurt analysts at the National Security Agency sifting through overseas communications intercepts. It could also hamper C.I.A. analysts searching for patterns in intelligence reports.
Former officials have said C.I.A. officials are anxious to find a way to continue to use Claude, which has sped up their work and deepened their analysis. But before Mr. Trump’s comments, officials had warned that any order by the president could force the agency to find other solutions.
The Pentagon is ready to move forward with Grok, produced by Elon Musk’s xAI, on its classified system. But Grok is considered by current and former government officials to be an inferior product. And switching A.I. software would take time and almost certainly cause disruption."
John K Clark