Unverified50% confidenceFactExact time
RAG技术的优势在于信息时效性强、幻觉率相对较低，因为有实际来源约束
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Perplexity Pro值得订阅吗？主流AI工具横向对比与选择指南
redditr/perplexity_ai7/10/2026
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