These three small-cap AI stocks have a shot at generating millionaire-making gains over the next decade: SoundHound AI (NASDAQ: SOUN), Serve Robotics (NASDAQ: SERV), and Evolv Technologies (NASDAQ: EVLV). Image source: Getty Images.

The central bank's decision to slash borrowing costs by 50 basis points is easing concerns about the economy. That could lift the AI trade.

Nvidia has been a bellwether in the artificial intelligence (AI) space thanks to its graphics processing units (GPUs) that have played a crucial role in the training and deployment of AI models. But the stock has fallen out of favor of late as investors are worried about its slowing growth.

It might interest investors, then, that Nvidia's CEO, Jensen Huang, has been selling some of his Nvidia holdings. In the last month alone, Huang sold 720,000 shares totaling about $78 million.