The US is divided on how to curb China's AI growth. Tech giants like Anthropic and Meta oppose banning open-weight models, promoting chip export restrictions instead. This impacts Nvidia, which seeks to sell chips to China. The author reveals underlying self-interests, questioning whether they should shape US policy. While chip bans might slow China, they haven't halted breakthroughs. The debate intertwines safety and business interests. The White House faces a complex task, as Silicon Valley prefers others to bear the economic cost of containing China.