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FAISS
productvector_db
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Overview
Developed byMeta AI
Maintained byMeta AI Research
Founded2017
LicenseMIT
Open source✓ Open Source
Primary languageC++
Use caseefficient similarity search and clustering of dense vectors
Also see
Alternative to
QdrantHnswlibAnnoy
Competes with
Annoy
Knowledge graph stats
Claims69
Avg confidence93%
Avg freshness99%
Last updatedUpdated yesterday
WikidataQ113481551
Trust distribution
100% unverified
Governance
Not assessed
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FAISS

product

Meta AI library for efficient similarity search and clustering of dense vectors

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supports algorithm

ValueTrustConfidenceFreshnessSources
k-nearest neighbors (k-NN)○UnverifiedHighFresh1
approximate nearest neighbor○UnverifiedHighFresh1
exact search○UnverifiedHighFresh1
approximate nearest neighbor search○UnverifiedHighFresh1
k-nearest neighbors search○UnverifiedHighFresh1
Product Quantization○UnverifiedHighFresh1
exact nearest neighbor search○UnverifiedHighFresh1
k-means clustering○UnverifiedHighFresh1
Inverted File Index (IVF)○UnverifiedHighFresh1
Hierarchical Navigable Small World (HNSW)○UnverifiedHighFresh1

supports hardware

ValueTrustConfidenceFreshnessSources
CPU○UnverifiedHighFresh1
GPU (CUDA)○UnverifiedHighFresh1
GPU○UnverifiedHighFresh1
GPU acceleration via CUDA○UnverifiedHighFresh1
GPU acceleration○UnverifiedHighFresh1
CUDA○UnverifiedModerateFresh1

provides bindings for

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

supports language

ValueTrustConfidenceFreshnessSources
C++○UnverifiedHighFresh1
Python○UnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
efficient similarity search and clustering of dense vectors○UnverifiedHighFresh1
efficient similarity search and clustering of dense vectors at scale○UnverifiedHighFresh1
similarity search and clustering of dense vectors○UnverifiedHighFresh1

pricing model

ValueTrustConfidenceFreshnessSources
free○UnverifiedHighFresh1

alternative to

ValueTrustConfidenceFreshnessSources
Qdrant○UnverifiedHighFresh1
Hnswlib○UnverifiedModerateFresh1
Annoy○UnverifiedModerateFresh1

integrates with

ValueTrustConfidenceFreshnessSources
LangChain○UnverifiedHighFresh1
NumPy○UnverifiedHighFresh1
scikit-learn○UnverifiedModerateFresh1

programming language

ValueTrustConfidenceFreshnessSources
C++○UnverifiedHighFresh1
C++○UnverifiedHighFresh1

open source

ValueTrustConfidenceFreshnessSources
true○UnverifiedHighFresh1

license type

ValueTrustConfidenceFreshnessSources
MIT○UnverifiedHighFresh1
MIT License○UnverifiedHighFresh1

developed by

ValueTrustConfidenceFreshnessSources
Meta AI○UnverifiedHighFresh1
Meta AI Research○UnverifiedHighFresh1
Facebook AI Research (FAIR)○UnverifiedHighFresh1
Facebook AI Research○UnverifiedHighFresh1

has binding for

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

supports gpu acceleration

ValueTrustConfidenceFreshnessSources
CUDA○UnverifiedHighFresh1
true○UnverifiedHighFresh1

supports index type

ValueTrustConfidenceFreshnessSources
IVF (Inverted File Index)○UnverifiedHighFresh1
IndexFlatL2○UnverifiedHighFresh1
IndexIVFFlat○UnverifiedHighFresh1
HNSW○UnverifiedHighFresh1
IVF○UnverifiedHighFresh1
IVF (Inverted File)○UnverifiedHighFresh1
HNSW (Hierarchical Navigable Small World)○UnverifiedHighFresh1

has bindings for

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

supports gpu

ValueTrustConfidenceFreshnessSources
true○UnverifiedHighFresh1

supports acceleration

ValueTrustConfidenceFreshnessSources
GPU acceleration○UnverifiedHighFresh1
GPU (CUDA)○UnverifiedHighFresh1
GPU○UnverifiedHighFresh1

supports distance metric

ValueTrustConfidenceFreshnessSources
L2 distance○UnverifiedHighFresh1
inner product○UnverifiedHighFresh1

maintained by

ValueTrustConfidenceFreshnessSources
Meta AI Research○UnverifiedHighFresh1
Meta AI○UnverifiedHighFresh1
Meta○UnverifiedHighFresh1

written in

ValueTrustConfidenceFreshnessSources
C++○UnverifiedHighFresh1

supports language binding

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

supports platform

ValueTrustConfidenceFreshnessSources
GPU acceleration○UnverifiedHighFresh1

requires

ValueTrustConfidenceFreshnessSources
BLAS○UnverifiedHighFresh1
BLAS library○UnverifiedModerateFresh1
NumPy○UnverifiedModerateFresh1

initial release year

ValueTrustConfidenceFreshnessSources
2017○UnverifiedModerateFresh1

first released year

ValueTrustConfidenceFreshnessSources
2017○UnverifiedModerateFresh1

first released

ValueTrustConfidenceFreshnessSources
2017○UnverifiedModerateFresh1

founded year

ValueTrustConfidenceFreshnessSources
2017○UnverifiedModerateFresh1

competes with

ValueTrustConfidenceFreshnessSources
Annoy○UnverifiedModerateFresh1

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Commonly Used With

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Claim count: 69Last updated: 4/9/2026Edit history