Building an AI-based semantic search or Q&A application? You might need is a vector database to store and search your embeddings easily.

As part of my experiments with creating embeddings for AI semantic search, I have been collecting and trying out various Vector databases.

This guide lists the best vector databases I have come across so far.

I am not recommending any particular one currently – the list is in alphabetical order and the order doesn’t represent my preference in any way.

Table of Contents

Chroma

Chroma is a new AI native open-source embedding database.

DeepsetAI

Deepest is not a vector database itself but a complete semantic search pipeline in one solution. You can plug in models and other vector databases in it.

Has open source as well as a managed cloud version

Faiss by Facebook

Not a vector database but a library for efficient similarity search and clustering of dense vectors. It’s open source.

Milvus

Milvus has an open-source version that you can self-host.

Also has a free trial for the fully managed version.

pgvector

pgvector is an open-source library that can turn your Postgres DB into a vector database.

Pinecone

Pinecone Has a free limited plan. After that it’s usage-based.

Supabase

Supabase is a managed Postgresql solution that implements storing embeddings using the pgvector extension.

Qdrant

Qdrant is an open-source vector database that is free to use in self-hosted mode. They also have a fully managed cloud version too.

Vespa

Vespa is a product from Yahoo. It’s available both as Open Source Download and as a managed Cloud solution.

Weaviate

Weaviate Has a free open-source version that you can self-host

Or you can use their cloud-based version. Free plan available. After that it’s usage-based

Conclusion

If I missed anything, let me know and I will include it after trying it out.

10 Best vector databases for building AI Apps with embeddings