US-listed shares of tech giants Nvidia, TSMC, and others are gaining some lost ground after China's DeepSeek rattled stock markets.

DeepSeek just shook up the artificial intelligence (AI) world in the biggest way since OpenAI launched ChatGPT in late 2022. The Chinese company's new R1 large language model (LLM) reportedly matches or beats OpenAI's o1 model on some benchmarks.

Global investors are worried the emergence of a low-cost Chinese AI model will threaten the dominance of AI leaders.