Quick definition · 2 min AI term
Vector database
A vector database stores embeddings so an AI can quickly find the most similar pieces of information by meaning.
Think of it like
A librarian who files things by what they mean, not alphabetically, so a question returns the closest answers.
Example
A “chat with your PDFs” tool stores your documents as embeddings in a vector database, then pulls the relevant bits to answer.
Why it matters
Vector databases are the memory behind most “AI that knows your stuff” products. The term shows up constantly in RAG and agents.
Where you’ll see it
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