Runway Unveils Solaris AI System That Generates App Interfaces in Real Time

AI company Runway has unveiled Solaris, an experimental system described as an “Interface World Model”, which could change the way users interact with software. Unlike conventional applications where designers and developers create predefined screens, buttons and menus, Solaris generates the visual interface itself as users interact with it. The system can create screens frame by frame and respond to actions such as clicks and drag-and-drop inputs. Runway says the technology could enable experiences such as virtual clothing showrooms, interactive room-design tools and simulated environments where users can experiment rather than simply navigate through menus.

Solaris builds on Runway’s Gen-4.5 video model and its earlier GWM-1 world model, combining visual generation with a language model that interprets user instructions and determines how the environment should change. The system is designed for real-time interaction, but remains experimental. Runway acknowledges challenges including producing stable and readable text, maintaining accuracy and consistency during longer interactions, and supporting accessibility technologies such as screen readers. The company is working with partners toward a public launch, while traditional apps are expected to remain part of the software ecosystem.