工具应用Perplexity本地搜索AI工具语义搜索Show HN

Show HN: Instant – Local AI search with a 95% hit rate (uses Perplexity models)

来源:Hacker News AI收录:2026/10/23

✦ AI 解读

Instant Search 是一款基于 Perplexity 最新嵌入模型的本地 AI 文件搜索工具,声称命中率高达 95%。它能够理解文件内容,支持通过自然语言描述快速定位图片、文档或 Obsidian 笔记,并在 1 秒内返回结果。相比 Spotlight 的关键词搜索和传统 RAG 的单一向量方案,Instant 提供了更精准的语义搜索体验。

Hi HN!Instant Search is the first accurate local AI file search that uses the latest embedding models from Perplexity to find the exact file (and page) with the content you’re looking for with a 95% hit rate.Search never worked properly, especially with local files. Now, you can find the right image, document, or Obsidian file in seconds. Looking for your driver’s license? Just type “driver’s license”. Looking for a particular note? Just explain the context.Why not Finder/Spotlight?Spotlight is just a keyword search. It doesn’t understand file content. Instant finds the exact file you’re describing in under a second.Why not RAG?Traditional RAG models give you a single embedding vector per entire body of text. That means either you have a vector that’s not detailed enough to give you an accurate semantic representation, or it’s too precise and doesn’t contain enough surrounding context. Instant circumvents these problems by relying on a bidirectional late-interaction embedding model that works flawlessly.How much space does indexing need? An average library of content needs less than 1GB of disk space.Check it out, share with friends, and let me know your feedback! Comments URL: https://news.ycombinator.com/item?id=50213691 Points: 2 # Comments: 0
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