# FAISS alternatives: what AI models name instead, November 2026

Gane Index, November 2026 Edition. 247 of the 252 answers in the 1 category where FAISS holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://www.gane.ai/index/it/vendors/faiss/alternatives

## Named instead, most often (every category and segment added)

- Pinecone: 73
- Qdrant: 72
- pgvector: 66
- Weaviate: 15
- Milvus: 7
- Chroma: 5

## Vector databases

**Small business**: 82 of 84 answers did not name FAISS (FAISS is #9 of 9 at 0%).

- pgvector: first choice in 38 of those 82
- Qdrant: first choice in 30 of those 82
- Pinecone: first choice in 19 of those 82
- Chroma: first choice in 5 of those 82
- Weaviate: first choice in 4 of those 82
- ChromaDB: first choice in 1 of those 82
- Milvus: first choice in 1 of those 82
- MongoDB Atlas Vector Search: first choice in 1 of those 82

**Mid-market**: 81 of 84 answers did not name FAISS (FAISS is #11 of 11 at 0%).

- Qdrant: first choice in 25 of those 81
- pgvector: first choice in 21 of those 81
- Pinecone: first choice in 17 of those 81
- Weaviate: first choice in 4 of those 81
- Elasticsearch: first choice in 1 of those 81
- Milvus: first choice in 1 of those 81
- Milvus / Zilliz Cloud: first choice in 1 of those 81
- PostgreSQL plus `pgvector`: first choice in 1 of those 81

**Enterprise**: 84 of 84 answers did not name FAISS.

- Pinecone: first choice in 37 of those 84
- Qdrant: first choice in 17 of those 84
- Weaviate: first choice in 7 of those 84
- pgvector: first choice in 7 of those 84
- Milvus: first choice in 5 of those 84
- MongoDB Atlas Vector Search: first choice in 2 of those 84
- Elastic: first choice in 1 of those 84
- Elasticsearch / OpenSearch: first choice in 1 of those 84

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.