There's no doubt that artificial intelligence is being used by more and more industries. As Information Age points out, Enhancing E-commerce, calculating valuations, inventory management and of course enabling driverless cars are among the many uses of artificial intelligence. With this in mind, which tech stocks should investors buy to cash in on this trend? Although Nvidia Corporation (NASDAQ:NVDA) now appears to be the prime beneficiary of the machine learning aspect of artificial intelligence, Nvidia stock has soared over 200% in the last year and likely already reflects a great deal of revenue from AI. Consequently, investors should wait for a better entry point before buying Nvidia stock. But four other tech stocks Intel Corporation (NASDAQ:INTC), Delphi Automotive PLC (NYSE:DLPH), Visteon Corp (NYSE:VC), and Baidu Inc (NASDAQ:BIDU) -- are definitely poised to get a meaningful boost from AI and should be bought at current levels.