SoundHound AI is growing rapidly, but there is at least one good reason for investors to be cautious about its stock.SoundHound AI (SOUN +0.87%) develops conversational artificial intelligence (AI) software that is used by some of the world's top brands. It's designed to understand voice prompts and respond in kind, making it highly practical in fast-paced business settings like restaurants and customer service call centers.SoundHound is still in the early stages of commercializing its technology, so its fi ...