Previously little-known Chinese startup DeepSeek has dominated headlines and app charts in recent days thanks to its new AI chatbot, which sparked a global tech sell-off that wiped billions off Silicon Valley’s biggest companies and shattered assumptions of America’s dominance of the tech race.

A frenzy over an artificial intelligence chatbot made by Chinese tech startup DeepSeek was upending stock markets Monday and fueling debates over the economic and geopolitical competition between the U.

DeepSeek is just one of an array of companies developing AI models and applications. Here’s a guide to a number of the biggest players in China.