Nvidia shares' 9% recovery Tuesday was the second-best day in terms of market cap added for any company ever—but the company faced another selloff Wednesday.

Chip stocks in the U.S. and Europe rose on Wednesday for a second straight day, recovering from a punishing selloff triggered by China's low-cost DeepSeek artificial intelligence tool at the start of the week.

David Sacks says OpenAI has evidence that Chinese company DeepSeek used a technique called "distillation" to build a rival model.

DeepSeek, a Chinese AI research lab, has released an advanced AI model which rivals leading models from OpenAI. The DeepSeek-R1 model can perform complicated mathematical reasoning, code generation, and more with fewer resources than its American competitors.

It’s impossible to look at the Chinese artificial intelligence startup DeepSeek’s new AI model without comparing it against OpenAI, the dominant American rival.DeepSeek has touted its latest AI model,

DeepSeek, a Chinese startup that's throwing tech valuations into chaos and challenging U.S. dominance in the field. Its creators claim it can do what U.S. models do but at a fraction of the cost. Steve DiPaola,

Tech stocks on Wall Street took a tumble on Monday after Chinese artificial intelligence startup DeepSeek released a free AI chatbot and their app climbed to the top of app stores. CBS News MoneyWatch correspondent Kelly O'Grady explains why the company is causing a stir.