Anthropic co-founder and CEO Dario Amodei is not happy — perhaps predictably so — with OpenAI chief Sam Altman. In a memo to staff, reported by The Information, Amodei referred to OpenAI’s dealings with the Department of Defense as “safety theater.”

“The main reason [OpenAI] accepted [the DoD’s deal] and we did not is that they cared about placating employees, and we actually cared about preventing abuses,” Amodei wrote.

Last week, Anthropic and the U.S. Department of Defense (DoD) failed to come to an agreement over the military’s request for unrestricted access to the AI company’s technology. Anthropic, which already had a $200 million contract with the military, insisted the DoD affirm that it would not use the company’s AI to enable domestic mass surveillance or autonomous weaponry.

Instead, the DoD — known under the Trump administration as the Department of War — struck a deal with OpenAI. Altman stated that his company’s new defense contract would include protections against the same red lines that Anthropic had asserted.

In a letter to staff, Amodei refers to OpenAI’s messaging as “straight up lies,” stating that Altman is falsely “presenting himself as a peacemaker and dealmaker.”

Amodei might not be speaking solely from a position of bitterness, here. Anthropic specifically took issue with the DoD’s insistence on the company’s AI being available for “any lawful use.” OpenAI said in a blog post that its contract allows use of its AI systems for “all lawful purposes.”

“It was clear in our interaction that the DoW considers mass domestic surveillance illegal and was not planning to use it for this purpose,” OpenAI’s blog post stated. “We ensured that the fact that it is not covered under lawful use was made explicit in our contract.”

Critics have pointed out that the law is subject to change, and what is considered illegal now might end up being allowed in the future.

And the public seems to be siding with Anthropic. ChatGPT uninstalls jumped 295% after OpenAI made its deal with the DoD.

“I think this attempted spin/gaslighting is not working very well on the general public or the media, where people mostly see OpenAI’s deal with the DoW as sketchy or suspicious, and see us as the heroes (we’re #2 in the App Store now!),” Amodei wrote to his staff. “It is working on some Twitter morons, which doesn’t matter, but my main worry is how to make sure it doesn’t work on OpenAI employees.”