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Pattern Over Pixels: Measuring Pattern Completion Bias in Multimodal Code Generation

Multimodal large language models (MLLMs) are increasingly usedto translate webpage screenshots into front-end code, but repeatedUI patterns may sway them toward visually incorrect yet pattern-consistentoutputs. In this work, we test how repeated webpagepatterns hurt MLLM accuracy on an objective screenshot-to-codefill-...