人工智能（AI）模型的参数规模越大，生成的答案就越准确？就更加可信？ 还真不一定！ 日前，一项发表在权威科学期刊 Nature 上的研究表明：相比于小参数模型，大参数模型不会承认它们的“无知”，而更倾向于生成错误答案。

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