DesignArena data: Gemini 3.8 Flash quality degrades sharply weeks after launch

legit_api · x · 2026-10-26

Design Arena documents apparent model degradation over time: same prompt, same model (Gemini 3.8 Flash), scenes generated 3 days after release were complete, while a month later output was barely recognizable. Metrics: never-visible objects jumped from 18% to 57%, underground bushes from 0% to 100%, and 64% of house walls ended up below ground — quantitative evidence that model output can silently degrade weeks after launch.

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