US stocks fell on fears that China is pulling ahead in AI, which is bad for American AI companies but could be good for everyone else who gets cheaper tools.

• A new Chinese AI model, Kimi K3, topped a coding leaderboard and matched the best US models while costing far less to run.
• This spooked investors because US AI firms like Anthropic and OpenAI burn cash and have no clear way to make money if Chinese rivals are both better and cheaper.
• Trump allies are using the scare to push for less regulation and more government money, with SpaceX in talks to supply computing power to the Pentagon and Musk chasing defense contracts.
• China is playing the opposite game, pitching itself as an AI partner to developing countries and showing off robots, exoskeletons, and biotic hands at a big Shanghai tech conference.
• While the US tightens visas and borders, countries like South Korea are easing rules to attract foreign talent, students, and tourists.

Outlook: Expect louder US calls to deregulate and spend big on AI and defense, while cheaper Chinese models keep pressuring the profits of American AI companies.