What does Cua actually do?
Cua stands out because it solves an agent problem one layer below the model. The core issue is not whether the model can reason in principle. It is whether the agent has a stable, reproducible place to act. Computer-use agents need desktops, windows, applications, screenshots, and controllable environments. Without that layer, a lot of agent demos stay demos. Cua packages cloud desktops for AI agents as infrastructure rather than spectacle. That distinction matters because the product is not trying to be the assistant itself, but the environment the assistant needs in order to do meaningful desktop work.