The Pentagon has pushed an "all-lawful use" clause and warned it could end work with Anthropic.

Anthropic, OpenAI, Google DeepMind and others have long promised to govern themselves responsibly. Now, in the absence of rules, there's not a lot to protect them.

"We don't need it, we don't want it, and will not do business with them again," the president wrote in the post.

While Anthropic has an existing partnership with the Pentagon, the AI company has remained firm that its technology not be used for mass domestic surveillance or fully autonomous weaponry.

Anthropic CEO Dario Amodei said Thursday that he "cannot in good conscience accede" to the Pentagon's demands to give the military unrestricted access to its AI systems.

The Pentagon has given Anthropic until Friday to loosen AI guardrails or face potential penalties, escalating a high-stakes dispute that raises questions about government leverage, vendor dependence, and investor confidence in defense tech.