The Download: video-generating AI, and Meta's voice cloning watermarks

You may not be familiar with Kuaishou, but this Chinese company just hit a major milestone: It's released the first ever text-to-video generative AI model that's freely available for the public to test. The short-video platform, which has over 600 million active users, announced the new tool, called Kling, on June 6. Like OpenAI's Sora model, Kling is able to generate videos up to two minutes long from prompts. But unlike Sora, which still remains inaccessible to the public four months after OpenAI debuted it, Kling has already started letting people try the model themselves. Zeyi Yang, our China reporter, has been putting it through its paces.