Artificial intelligence (AI) is expected to impact the global economy in a big way in the long run, with market research firm IDC estimating that every dollar spent on AI-related business solutions and services will generate $4.60 in the global economy in 2030.AI spending has the potential to account for 3.5% of the global gross domestic product (GDP) in 2030. So now is a good time for investors to take a closer look at some of the top names in this sector that seem well placed to make the most of this massive opportunity. Which is the best Ai stock to invest in ?

