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.

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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.

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