The artificial intelligence (AI) and accelerated computing bull market continues to build a head of steam. Investors can't get enough of leaders like Nvidia (NASDAQ: NVDA) that are crafting next-generation computing systems.But for some investors, the price tags on stocks like Nvidia may have gotten too high to stomach. That's OK. There are some far smaller AI-related businesses trading at relatively attractive valuations that might suit long-term investors. Two such small AI stocks worth a look at right no ...