Comparison
Elicit vs Perplexity
面向 literature discovery 任务比较 Elicit 和 Perplexity，重点看适用团队、证据可追溯性、工作流成本、协作方式和投稿前复核风险。
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Draft comparison note
Elicit 的主要定位偏向 paper-focused evidence extraction and screening；Perplexity 的主要定位偏向 broad answer synthesis with web citations。正式医学科研里，不建议只凭功能介绍做决定，更稳妥的做法是用同一批材料实测两个工具，保留操作记录，并把所有科学结论回到原文、数据集、方案、PMID、DOI、方法、结局和统计结果里复核。
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