Sora, OpenAI's app and social network for AI-generated videos, has been downloaded over one million times, according to Sora head Bill Peebles. The app reached one million downloads in less than five days, Peebles says, "even faster than ChatGPT did." That's despite OpenAI only making the app available in North America, and its decision to require users to have an invite to actually use it.Like TikTok, Sora offers an endless vertical feed of videos, only Sora's videos are AI-generated rather than uploaded by users. Creating a 10-second video of your own is as simple as writing a prompt to OpenAI's Sora 2 model in the app. And through the Sora's Cameo feature, you can even create videos of yourself and anyone else who's agreed to share their likeness to the service.