Shares in Nvidia, whose semiconductors power the AI industry, fell nearly 17 percent on Wall Street, erasing nearly $600 billion of its market value.

The Chinese start-up disrupted the AI landscape, showing that cost-effective AI models can rival larger systems, raising questions about big investments Wall Street had a rough start to the week on concern that a cheaper artificial intelligence-model from China could threaten the dominance of US technology,

China's DeepSeek overtook US rival ChatGPT in terms of Apple Store downloads, offers the prospect of a viable, cheaper AI alternative