The success of a mysterious Chinese lab has investors questioning the AI spending boom that has swept through Silicon Valley.

NVIDIA, the world's most valuable company until Monday, lost $600 billion of market value in a single day, the biggest in US stock history.

By Ankur Banerjee, Rae Wee and Amanda Cooper LONDON/SINGAPORE (Reuters) -Technology shares steadied on Tuesday, led by a modest recovery in Nvidia after its record-breaking wipeout in market value in a rout sparked by a low-cost Chinese artificial intelligence model that may threaten the dominance of U.

Jensen Huang likely had an especially bad case of the Mondays when DeepSeek came to town. Of course, as one of the richest people in the world, the co-founder of Nvidia ended up skating away virtually unscathed.

The recent AI advances by Chinese upstart DeepSeek could be the beginning of a potential nightmare scenario that Nvidia Corp. Chief Executive Jensen Huang has been worrying about since the chip maker’s meteoric rise.

US chip giant Nvidia suffered a record wipeout on Monday after Chinese startup DeepSeek upended the tech sector — and the rout cost its CEO Jensen Huang more than $20 billion in a single day. DeepSeek said it built its new AI model in just two months for less than $6 million – a fraction of the training costs of its US rivals – and without access to Nvidia’s powerful,