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 Generative AI


OpenAI video app Sora hits 1 million downloads faster than ChatGPT

BBC News

OpenAI says the latest version of its text-to-video artificial intelligence (AI) tool Sora was downloaded over a million times in less than five days - hitting the milestone faster than ChatGPT did at launch. The app, which has topped the Apple App Store charts in the US, generates ten second long realistic-looking videos from simple text prompts. The figures were announced in an X post from Sora boss Bill Peebles, who said the surging growth came even though the app was only available to people in North America who had received an invite. The Sora app - which makes it easy for users to post videos they have created to social media - has resulted in a deluge of videos on social feeds. Some have included depictions of deceased celebrities such as musicians Michael Jackson and Tupac Shakur.







Guiding a Diffusion Model with a Bad Version of Itself

Neural Information Processing Systems

The popular classifier-free guidance approach uses an unconditional model to guide a conditional model, leading to simultaneously better prompt alignment and higher-quality images at the cost of reduced variation. These effects seem inherently entangled, and thus hard to control.