After China's DeepSeek prompts AI rethink, futures point to biggest pullback in years for the Nasdaq. Follow along for live updates on stocks and other markets, including the Dow Jones Industrial Average,

DeepSeek: Chinese AI firm making waves in Silicon Valley Chinese firm DeepSeek's artificial intelligence chatbot has soared to the top of the Apple Store's download charts, stunning industry insiders and analysts with its ability to match its US competitors.

DeepSeek’s ability to dramatically reduce inference costs ruffled feathers in the industry. Perplexity AI CEO Aravind Srinivas commented on its V3 model: "DeepSeek has effectively replicated O1-mini and made it open-source.