House Speaker Mike Johnson (R-La.) and President Trump appeared to take different stances Monday on China's artificial intelligence developments. Why it matters: Interest in Chinese company DeepSeek's rapid advancements in AI sent U.S. tech stocks tumbling on Monday, as the mobile app climbed to no.1 on Apple's rankings of free iPhone apps.

MIAMI: US President Donald Trump said on Monday (Jan 27) the low-cost Chinese AI model DeepSeek was a "wake up call" for US firms, after its emergence caused a rout in tech shares.

The sudden rise of Chinese AI app DeepSeek has leaders in Washington and Silicon Valley grappling with how to keep the U.S. ahead in the crucial technology.