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.

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.

Chinese AI lab DeepSeek sent a shockwave through the tech sector this week after releasing its R1 large language model (LLM) that was faster, more efficient, and cheaper to train and run than existing models,

Some AI researchers hailed DeepSeek’s R1 as a breakthrough on the same level as DeepMind’s AlphaZero, a 2017 model that became superhuman at the board games Chess and Go by purely playing against itself and improving, rather than observing any human games.

Move over ChatGPT, there's a new contender to the throne. Chinese startup DeepSeek AI blasted its way to the top of Apple's App Store this week, hammering U.S. tech stocks in the process — and reacting to the news on The Daily Show, Jon Stewart was shocked and appalled.

Liang Wenfeng, the 40-year-old founder of DeepSeek, trained as an engineer and then launched a hedge fund. Now he’s enjoying sudden success with his AI chatbot.

Chinese tech startup DeepSeek released a model of its AI service that seemingly is on-par with U.S.-based competitors like ChatGPT, but required far-less computing power.

The little-known artificial intelligence firm has emphasized research, even as it emerged as the brainchild of a hedge fund.