Fortune: OpenAI now tests whether its models' answers obey the laws of war, because those models are going to the U.S. military.

OpenAI created its first human rights and responsible deployment role, Sarah Yager, who spent 30 years on military issues before joining in June, described her method.

International experts entered high-stakes combat prompts into OpenAI models, and then engineers changed the models based on how the answers measured up against the Geneva Conventions.

This is kind of backward finetuning step Yager said had never been taken before.