2 Small-Cap Artificial Intelligence (AI) Stocks to Buy Right Now

These two companies are each worth under $4 billion, but they're packed with potential.Companies like Nvidia, Microsoft, and Amazon have become synonymous with artificial intelligence (AI). These trillion-dollar giants are among the highest-quality companies investors can buy, but smaller names can represent promising AI opportunities as well.C3.ai (AI -0.62%) was one of the world's first enterprise AI companies when it was founded in 2009, and SoundHound AI (SOUN -2.65%) has become a leader in conversation ...