The Computer-Using Agent (CUA) is an advanced AI model developed by OpenAI, combining the visual capabilities of GPT-4o with advanced reasoning through reinforcement learning. It can interact with graphical user interfaces (GUIs) like a human, without relying on specific operating system APIs or web interfaces. The flexibility of CUA enables it to perform tasks in various digital environments, such as filling out forms and browsing the web. The emergence of this technology marks the next step in AI development, opening new possibilities for AI applications in everyday tools. CUA is currently in a research preview phase and is available for use by Pro users in the United States through Operator.