OUI-1: first open-weights Generative UI model hits 71.7% with just 4B params

iamrobotbear · x · 2026-09-09

OUI-1 is claimed to be the first open-weights model for Generative UI. At 4B params it scores 71.7% on Generative UI Bench, beating Gemma 4 31B with 8x fewer active params and scoring 5.5x its fine-tuning base DiffusionGemma. Methodology, weights, and full benchmark results are published.

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