Robust gains by Chinese tech stocks have added billions of dollars in their market capitalization, driven by the sudden rise to fame by homegrown AI app DeepSeek.

Chinese investors are rushing into AI-related stocks, betting the artificial intelligence advance of home-grown startup DeepSeek will lead to a boom in the sector and give the initiative to China in an intensifying Sino-U.

Here’s what you need to know about DeepSeek, the Chinese AI startup that rattled markets as its app dethroned OpenAI's as the most-downloaded free app in the U.S. on Apple.