Best semantic search tools in 2025

Semantic search engine for finding relevant YouTube videos quickly.
No pricing info
open

A smart search engine that understands user intent and context.
No pricing info
open

Smart assistant for organizing and retrieving saved digital content.
Free
+ from $12/m
open

Find mathematical theorems and information quickly and accurately.
No pricing info
open

Connects users for open-source software discussions and resources.
Free
open

AI assistant for quick access to workplace documentation.
Free
+ from $750/m
open
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