alphaXiv @alphaxiv.org · May 3 X-Fusion: Introducing New Modality to Frozen Large Language Models X-Fusion is a dual-tower framework that introduces vision capabilities to pretrained large language models (LLMs) without altering their language weights, enabling unified multimodal understanding and generation.
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The Leaderboard Illusion This study investigates structural biases in Chatbot Arena, a widely used leaderboard for evaluating large language models (LLMs), revealing how selective testing practices and data access asymmetries distort perceptions of model quality.