Nvidia is bolstering support for Chinese open AI models as it warns of White House crackdown

* Nvidia optimizes hardware for Chinese AI models like DeepSeek, Qwen. * U.S. lawmakers worry about Chinese AI adoption; possible tariffs/restrictions ahead. * NVDA shares rose 8.21% after strong Q2 earnings and guidance. Nvidia is optimizing its chips for leading Chinese AI models including DeepSeek V4 Flash and Alibaba's Qwen 3.8, aiming to win global developer adoption. The move comes as U.S. lawmakers debate restrictions and possible tariffs on AI linked to China. In its Q2 SEC filing, Nvidia warned of material business risk if Washington limits support for open-source models from China. Shares rose 8.21% to $226.87 after the company beat earnings estimates and raised guidance. Industry peers Microsoft, Meta, and others have urged policymakers to avoid premature curbs on open-weight AI.