Cited by 1,008Advanced Image and Video Retrieval TechniquesTopic ModelingAdvanced Database Systems and Queries

The Faiss Library

Open access
Douze, Matthijs, Guzhva, Alexandr, Deng, Chengqi, Johnson, Jeff, Szilvasy, Gergely, Mazaré, Pierre-Emmanuel, Lomeli, Maria, Hosseini, Lucas +1 more·2026·IEEE Transactions on Big Data

Abstract

Vector databases typically manage large collections of embedding vectors. As AI applications are growing rapidly, the number of embeddings that need to be stored and indexed is increasing. The Faiss library is dedicated to vector similarity search, a core functionality of vector databases. Faiss is a toolkit of indexing methods and related primitives used to search, cluster, compress and transform vectors. This paper describes the trade-offs in vector search and the design principles of Faiss in terms of structure, approach to optimization and interfacing. We benchmark key features of the library and discuss a few selected use cases to highlight its broad applicability.

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Crossref · 10.1109/tbdata.2025.3618474

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Authors
Douze, M., Guzhva, A., Deng, C., Johnson, J., Szilvasy, G., Mazaré, P.-E., Lomeli, M., Hosseini, L., & Jégou, H.
Affiliations
  • FAIR, Meta, Paris, France
  • Zilliz, Redwood City, CA, USA
  • DeepSeek (China) (CN)
  • Skip Labs, Paris, France
Venue
IEEE Transactions on Big Data
Published
2026-04
Volume
12
Issue
2
Pages
346-361
ISSN
  • 2332-7790 (ISSN-L)
  • 2372-2096
OpenAlex
W4415124086
Cited by
478
References
61
Citations by year
2026: 287 · 2025: 191
FWCI
167.83
Type
journal article
Language
en
Open access
Locations
IEEE Transactions on Big Data (publishedVersion, cc-by)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Image and Video Retrieval Techniques
  • Physical Sciences › Computer Science › Artificial Intelligence › Topic Modeling
  • Physical Sciences › Computer Science › Computer Networks and Communications › Advanced Database Systems and Queries
Keywords
vector similarity search, vector databases, vector indexing, vector embeddings, vector clustering, vector compression, benchmarking

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