OUI-1: world's first model for Generative UI
OUI-1 is a new open-weight model designed to generate user interfaces locally on consumer hardware. By utilizing DiffusionGemma, the developers aim to achieve the speed and reliability required for agent-driven software interfaces.
Why it matters
Local, high-speed generative UI could fundamentally change how software is built and interacted with, reducing reliance on cloud-based compute.
OUI-1 is a finetuned DiffusionGemma model that writes user interfaces in openui-lang . It is 26BA4B model that can run on consumer grade GPU (RTX 5090, at FP8), and the weights are on Hugging Face under the Gemma Terms of Use.
Agent-driven interfaces are the future of software. But getting there comes down to three constraints. Interfaces must be generated in under a second. They must be reliable enough to use as software. And the models must be small enough to run locally on consumer hardware.
With AppLess , we explored that experience using Gemma 4 on Cerebras. But it depended on specialized hardware in the cloud. Moving it onto the device means solving a harder problem: preserving responsiveness with dramatically less compute, without sacrificing the quality or correctness of the generated interface.
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