Shares in major tech firms in the US and Japan have tumbled as the industry takes stock of the challenge from DeepSeek.

DeepSeek, an AI startup just over a year old, stirred awe and consternation in Silicon Valley with its breakthrough ...

Both Microsoft Copilot and ChatGPT offer compelling AI capabilities. But how do their Windows apps fare against each other? Let's break down the experience of both apps on Windows 11. Microsoft wants ...