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IVFFlat
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Overview
Developed byFacebook AI Research (FAIR)
LicenseMIT License
Open source✓ Open Source
Use caseapproximate nearest neighbor search for high-dimensional vectors
Integrates with
pgvector
Knowledge graph stats
Claims13
Avg confidence92%
Avg freshness99%
Last updatedUpdated 4 days ago
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IVFFlat

concept

Inverted file with flat compression, indexing method used in pgvector

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open source

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true○UnverifiedHighFresh1

part of library

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FAISS○UnverifiedHighFresh1

primary use case

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approximate nearest neighbor search for high-dimensional vectors○UnverifiedHighFresh1

developed by

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Facebook AI Research (FAIR)○UnverifiedHighFresh1

supports language

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Python○UnverifiedHighFresh1
C++○UnverifiedHighFresh1

license type

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MIT License○UnverifiedHighFresh1

based on

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inverted file system with flat quantization○UnverifiedHighFresh1

use case

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vector database indexing○UnverifiedHighFresh1

memory efficiency

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lower than exact search methods○UnverifiedHighFresh1

alternative to

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HNSW○UnverifiedModerateFresh1
LSH○UnverifiedModerateFresh1

integrates with

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pgvector○UnverifiedModerateFresh1

Alternatives & Similar Tools

HNSW
alternative to
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LSH
alternative to
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Commonly Used With

pgvector

Related entities

Claim count: 13Last updated: 4/6/2026Edit history