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.

DeepSeek’s AI products have shaken up the American stock market and tech industry—but some experts are questioning how big of a threat the Chinese company really is.

DeepSeek, a Hangzhou-based startup founded in 2023, shot to the top of Apple’s App Store free app chart after releasing a new open-source AI model it says rivals OpenAI's work. Its website was hit by outages amid a spike in interest.

Alibaba claims that its Qwen2.5-Max artificial intelligence model outperformed its rivals at OpenAI, Meta and DeepSeek.

Chinese startup DeepSeek’s app has climbed to the top of the iPhone charts as its newest AI assistant showed competitive performance against rivals like OpenAI and Meta.