Anthropic, the company behind Claude and OpenAI's chief rival, pushed back against the Department of War over using their technology for fully autonomous armed drones and mass surveillance.

Anthropic's Claude model was the first agentic AI system capable of productive work like software coding.

Just a few hours after Anthropic's stance, OpenAI signed a similar deal with the Pentagon, effectively announcing that they were willing to forgo extremely basic AI safety guardrails if it meant securing a lucrative government contract.

Following the Pentagon deal, many people are actively boycotting OpenAI's products and considering alternatives, with Anthropic being the biggest winner so far.

Anthropic will not widely release its Claude Mythos Preview model because of its potential to cause harm if misused.

Anthropic has been using the Claude Mythos model internally since February 24th, 2026.