Just how rich are businesses getting in the AI gold rush?

Barely a day goes by without excitement about artificial intelligence (AI) sending another company’s market value through the roof. Earlier this month the share price of Dell, a hardware manufacturer, jumped by over 30% in a day because of hopes that the technology will boost sales. Days later Together AI, a cloud-computing startup, raised new funding at a valuation of $1.3bn, up from $500m in November. One of its investors is Nvidia, a…