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LangChain@LangChainAI
When you search, structured filters like a time range narrow the candidates first. Then a small, fast model checks each remaining trajectory against your description, with many checks running in parallel. Each one usually takes under half second. Matches stream back as they’re found, so you don’t wait for the full scan.
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---
tweet_id: "2111140113061450181"
author: "LangChainAI"
published_at: "2026-10-16T17:00:00+00:00"
source_url: "https://x.com/LangChain/status/2111140113061450181"
---

When you search, structured filters like a time range narrow the candidates first.  
  
Then a small, fast model checks each remaining trajectory against your description, with many checks running in parallel.  
  
Each one usually takes under half second.  
  
Matches stream back as they’re found, so you don’t wait for the full scan.

![Tweet Image](https://pbs.twimg.com/media/HUw8qAVX0AAFe3M.png)