**[Runway Created a World Model for App Interfaces: Generate Entire Interfaces Without Code]** Beating AI Newsflash: Runway has launched a world model called Solaris that can directly generate app interfaces. Currently, using AI to create apps typically involves generating HTML, CSS, and JavaScript first, which are then rendered into interfaces by browsers. Solaris skips this step entirely: the entire interface users see is a real-time generated display from the model. Solaris is built on Runway's Gen-4.5 framework. When users click, drag, or input text, these actions become the conditions for generating the next frame. The language model determines what should happen next in the interface, and Solaris renders it in real time. Pages, buttons, and interaction states don’t need to be pre-defined. Runway also conducted comparison tests between Solaris and code-based interfaces generated by Claude Opus 5. In tests involving 250 participants across 30 interaction scenarios, resulting in nearly 7,500 evaluations, 61% of users preferred Solaris for "completing tasks as instructed," compared to 24% for Claude. For naturalness, Solaris scored 71% versus Claude's 21%. Solaris is currently in research preview and still far from fully replacing traditional apps. Real-time generation for every frame remains more costly than standard web pages, and challenges like text stability, maintaining consistent interfaces over extended periods, and accessibility support persist. [Original Link]