Anthropic CEO Dario Amodei on Thursday said the company “cannot in good conscience” agree to allow the Department of Defense to use its models in all lawful use cases without limitation, adding that the agency’s threats do not change its position.

Until this week, Anthropic was the only AI company cleared to deploy its models on classified networks. Elon Musk's xAI is now the second.

Anthropic, maker of Claude, has been clear that it has ethical concerns over unchecked government use of AI.