If the US declares LLM models munitions then it makes it much more difficult to easily use them. Illegal use of weapons of war can get you banned from SWIFT.

Other than China the rest of the world has dick for capacity to run models. Even China is at 1/10th the US is and is at to stay for a considerable amount of time.

Before the tariff spree and general unpredictability the US could likely have muscled most of the rest of the world into following suit - now, not so much.

How do you ban even ban them in America with the freedom of speech amendments in the constitution?