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.

Development on the first DeepSeek R1 clone might have started with the announcement of the Open-R1 open-source project.

Microsoft has moved surprisingly quickly to bring R1 to its Azure customers.

Microsoft MSFT.O has made Chinese startup DeepSeek's R1 artificial intelligence model available on its Azure cloud computing platform and GitHub tool for developers, the U.S. company said on Wednesday.

DeepSeek’s AI breakthrough challenges Big Tech with a cheaper, efficient model. This may be bad for the incumbents, but good for everybody else.

US tech stocks were steady on Tuesday after they slumped on Monday following the sudden rise of Chinese-made artificial intelligence (AI) app DeepSeek. Shares in chip giant Nvidia rose by 8.8%, having slumped on Monday,

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.

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.

Chinese startup DeepSeek has achieved what many (including experts) thought impossible: create a foundational, competitive AI model for just $5.6 million. By comparison, OpenAI’s unreleased GPT-5 (codenamed “Orion”) reportedly requires $500 million for six months of training.