The stock market plummeted this week after a Chinese company showed it could do more with less. Today, we talk about the new AI chatbot DeepSeek, and why people are freaking out about it – from Silicon Valley to Wall Street to Washington.Read more:For two years, American artificial intelligence companies looked unstoppable. Then came DeepSeek. Today on Post Reports, we talk to tech policy reporter Eva Dou about how a scrappy startup became so dominant, and what it means for the AI arms race. Eva has a book out now about one of the world’s most controversial tech companies, set against the backdrop of the political, social and economic transformation of China. It’s called “House of Huawei: The Secret of China’s Most Powerful Company.”Today’s show was produced by Rennie Svirnovskiy. It was edited by Maggie Penman and mixed by Sam Bair. Thanks to James Graff. Subscribe to The Washington Post here.