Purported Chinese firm's AI breakthrough rocks U.S. companies, stocks

A high-flying American stock powering the artificial intelligence revolution suffered a sharp blow on Wall Street Monday amid the sudden rise in popularity for Chinese AI firm DeepSeek, a potentially far cheaper rival.

Purported Chinese firm's AI breakthrough rocks U.S. companies, stocks
A high-flying American stock powering the artificial intelligence revolution suffered a sharp blow on Wall Street Monday amid the sudden rise in popularity for Chinese AI firm DeepSeek, a potentially far cheaper rival.