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一项大规模研究分析了 DeepSeek、Qwen、豆包和元宝等中文生成式搜索助手的 160,860 条引用，发现近 40% 展示给用户的链接从未被实际用于生成回答，且约 13% 的答案中的品牌名称在引用页面中根本找不到来源。
An audit of Perplexity's AI search models found that over a third of citations for specific figures do not contain those numbers on the linked pages, with failures including inaccessible or irrelevant sources.