OpenAI, the maker of ChatGPT, has discontinued its popular Sora AI short video generator, citing tumbling popularity as one of the reasons for the decision. The company also plans to use the free version of the browser version. The decision allows OpenAI to redirect its resources to more promising pursuits, such as world simulation research. The announcement was met with mixed reactions, with some expressing surprise and contempt. Until an unspecified future date, users can still use Sora and its generated videos.