Builder.ai went from a value of $1.5 billion to zero in a few months, amid questions over the sales of an A.I. product. Its downfall hints at a broader downturn.

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Beijing is taking an industrial policy approach to help its A.I. companies close the gap with those in the United States.

A four-day test in the Alaska wilderness shows how far the U.S. military and American drone companies lag behind China in the technology.

As China vies with Silicon Valley for primacy, Hangzhou, home to DeepSeek and Alibaba, is where its aspiring tech titans mingle and share ideas.

Confronted with tariffs and scrutiny in the United States and Europe, Chinese consumer brands are betting that they can become household names in Latin America’s biggest economy.