What DeepSeek AI and why is it disturbing the AI sector ? A company that has gained a lot of attention for its powerful AI models. Its latest model, DeepSeek-V3, has become very popular and even ranked as the top free app in the United States. What makes DeepSeek different is its ability to train advanced AI at a much lower cost than big companies. This has worried investors and led to a big drop in tech stock prices, including a record loss for Nvidia. Even with restrictions on advanced chip technology from the U.S., DeepSeek has still managed to compete with top AI companies. Its success is changing the AI industry by showing that powerful AI can be created without spending huge amounts of money.