OpenSearch kNN
by Amazon Web Services · freemium · Last verified 2026-04-24
OpenSearch's k-NN plugin provides approximate nearest-neighbor vector search capabilities built on NMSLIB and FAISS. As an open-source Elasticsearch fork maintained by AWS, OpenSearch kNN integrates vector search into existing OpenSearch clusters and is available managed through Amazon OpenSearch Service.
https://opensearch.org/docs/latest/search-plugins/knn/ ↗C
C—Below Average
Adoption: C+Quality: B+Freshness: ACitations: CEngagement: F
Specifications
- License
- Proprietary
- Pricing
- freemium
- Capabilities
- Integrations
- Use Cases
- API Available
- No
- SDK Languages
- Tags
- vector-db, opensearch, aws, open-source, knn, hybrid-search
- Added
- 2026-04-24
- Completeness
- 60%
Index Score
44Adoption
50
Quality
70
Freshness
80
Citations
40
Engagement
0