Unverified50% confidenceFactExact time
Answer engines typically choose two to six sources to cite when synthesizing a response.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/15/2026
First Seen
Valid until: 1/13/2027
Sources
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Related Claims
UnverifiedThe practical criterion for choosing a model is to count how many steps the answer requires: use System 1 for one-step answers and System 2 for multi-step answers.60% similarUnverifiedPerplexity is positioned as an answer engine, relying on large language models to generate structured answers in real time rather than merely returning a list of links.59% similarUnverifiedTraditional large language model evaluation centers on the accuracy of single-turn question answering, scoring the output answer against a reference answer after a question is given58% similarUnverified来源标注（Citation）通过追踪回答片段对应的原始文档位置，是解决大模型幻觉问题的关键工程手段58% similar
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