What is Vector database?
Also called: Vector store
A vector database stores embeddings and quickly finds the texts most similar in meaning to a question.
Illustration: AI-generated · AI Compare Ninja · CC BY 4.0
Example
You search for “notice period” and also find a paragraph that says “end of contract”.
For pros
It uses approximate nearest-neighbour search. Key criteria are filtering, updates, hosting location and cost.
Sources: pinecone.io, Wikipedia · Checked on 19 October 2026
Written by AI Compare Ninja with AI assistance and edited by us. Every explanation is our own text.
