DeepSeek topped the Apple App Store chart and sparked fears the Chinese company was quickly catching up with OpenAI's ChatGPT ...
The S&P 500 and Nasdaq plunged at midday when Chinese artificial intelligence startup DeepSeek shook up the sector with a lower-cost large language model.
ET, the Dow Jones Industrial Average fell 0.28 per cent, the S&P 500 lost 1.77 per cent, the Nasdaq Composite lost 3.04 per ...