Chinese start-up DeepSeek introduced an artificial intelligence (AI) chatbot that quickly became the most downloaded free mobile application in the U.S. Importantly, the base large language model behind the DeepSeek application allegedly cost $6 million to train and reportedly outperforms top U.

Nvidia Corp.’s stock fell Monday as investors weighed the potential for tariffs to impact chip companies and continued to assess the fallout from DeepSeek.

While cheap, powerful AI models are a great thing for companies looking to deploy AI, it's potentially terrible news for Nvidia.