Investors have got the hots for "generative AI" that can make text and images. But so far, the hype runs ahead of the business results.... A few of what are now styled as generative AI companies have collectively raised hundreds of millions of dollars, spurring a hunt for a new generation of AI unicorns. They’re working on applications including generating music, game development, writing assistants, customer service bots, coding aids, video editing tech, and assistants that manage online communities. Guo has invested in a company that plans to generate legal contracts from a text description—a potentially lucrative application if it can work reliably.