In multiple replays of a wargame simulation, OpenAI's most powerful artificial intelligence chose to launch nuclear attacks. Its explanations for its aggressive approach included "We have it! Let's use it" and "I just want to have peace in the world." These results come at a time when the US military has been testing such chatbots based on a type of AI called a large language model (LLM) to assist with military planning during simulated conflicts, enlisting the expertise of companies such as Palantir and Scale AI. Palantir declined to comment and Scale AI did not respond to requests for comment. Even OpenAI, which once blocked military uses of its AI models, has begun working with the US Department of Defense.