# Who makes the most used vector database?

Category: Vector Databases. Intent: navigational. Top brand: Pinecone.

Page: https://slateindex.ai/prompt/who-makes-the-most-used-vector-database-r5dowy4fgc · data of 2026-11-02

## Brands named

| Brand | Share of engines |
|---|---|
| Pinecone | 100% |
| PostgreSQL | 67% |
| Qdrant | 67% |
| Weaviate | 67% |
| Chroma | 67% |
| turbopuffer | 33% |
| Actian VectorAI DB | 33% |
| Elasticsearch | 33% |
| Faiss | 33% |
| OpenSearch | 33% |

## Sources

- ramp.com (3)
- firecrawl.dev (2)
- g2.com (2)
- pinecone.io (2)
- actian.com (1)
- amazonaws.com (1)
- axis-intelligence.com (1)
- citehawk.com (1)
- db-engines.com (1)
- greptile.com (1)
- milvus.io (1)
- peerspot.com (1)
- truefoundry.com (1)

## Definitions

- Visibility (0–100): how often and how high AI answers name the brand, weighted by position.
- Mention rate: share of collected AI answers that name the brand.
- Share of voice: the brand's mentions as a share of all brand mentions in the category.
- Citation authority: share of answers naming the brand that cite the brand's own site.

Cite as: SlateIndex, “Who makes the most used vector database?”, https://slateindex.ai/prompt/who-makes-the-most-used-vector-database-r5dowy4fgc, data of 2026-11-02. Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).