# Runway Unveils Solaris Interface World Model Generating Apps Frame-by-Frame

> Runway, best known for its Gen video models, has pulled the curtain back on Solaris, which it calls an Interface World Model. Instead of running code, Solaris generates an app's interface one frame at a time as you use it, predicting what the next screen should look like in response to your clicks and typing. It is built on the company's Gen-4.5 video model, runs at 720p, and responds interactively, so the software is really a video being dreamed up on the fly rather than a program executing logic. The idea is provocative because it inverts how interfaces have always worked. Rather than a developer specifying buttons and states, the model imagines them, which hints at a future where interactive tools could be conjured from a prompt. For now Runway is careful to frame Solaris as an early-access research project, not a public API or shipping model. Why it matters: this is a smaller player probing a genuinely new direction while the giants race on chatbots. If generated interfaces prove reliable, they could reshape how quickly and cheaply anyone spins up a working app.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: Runway · Published Tuesday, September 1, 2026_

## Wortins' read

Runway, best known for its Gen video models, has pulled the curtain back on Solaris, which it calls an Interface World Model. Instead of running code, Solaris generates an app's interface one frame at a time as you use it, predicting what the next screen should look like in response to your clicks and typing. It is built on the company's Gen-4.5 video model, runs at 720p, and responds interactively, so the software is really a video being dreamed up on the fly rather than a program executing logic. The idea is provocative because it inverts how interfaces have always worked. Rather than a developer specifying buttons and states, the model imagines them, which hints at a future where interactive tools could be conjured from a prompt. For now Runway is careful to frame Solaris as an early-access research project, not a public API or shipping model. Why it matters: this is a smaller player probing a genuinely new direction while the giants race on chatbots. If generated interfaces prove reliable, they could reshape how quickly and cheaply anyone spins up a working app.

## Source

[Read the full story at Runway](https://runway.com/news/research/introducing-solaris)

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