Top 11AI made for AI

The 11 cheapest ai infrastructure · vector dbs

The cheapest provider in the Top 11 The 11 Best Vector Databases (2026) is Weaviate, followed by Zilliz (Milvus).

Why this answer

Sorted by published starting price, lowest first. We use each provider's lowest documented price band; where pricing is undisclosed, the entry falls to the bottom of the list.

Showing the top 11 of 11+ screened. Methodology at /methodology.

  1. #1Weaviate(rank #2 in The 11 Best Vector Databases (2026))

    —

    Top open-source choice with excellent developer experience and powerful hybrid search.

    Full Weaviate review · Compare: Weaviate vs Zilliz (Milvus) · Alternatives

  2. #2Zilliz (Milvus)(rank #3 in The 11 Best Vector Databases (2026))

    —

    The go-to for massive-scale, enterprise deployments based on open-source Milvus.

    Full Zilliz (Milvus) review · Alternatives

  3. #3Qdrant(rank #4 in The 11 Best Vector Databases (2026))

    —

    A highly performant and efficient vector database written in Rust.

    Full Qdrant review · Alternatives

  4. #4Chroma(rank #5 in The 11 Best Vector Databases (2026))

    —

    The most developer-friendly choice for getting started with vector search.

    Full Chroma review · Alternatives

  5. #5Vespa(rank #6 in The 11 Best Vector Databases (2026))

    —

    Extremely powerful and mature, but complex to master for hybrid search.

    Full Vespa review · Alternatives

  6. #6Elasticsearch(rank #7 in The 11 Best Vector Databases (2026))

    —

    A mature, integrated solution for teams already using the Elastic stack.

    Full Elasticsearch review · Alternatives

  7. #7Redis(rank #8 in The 11 Best Vector Databases (2026))

    —

    Leverages in-memory speed for extremely fast, real-time vector search.

    Full Redis review · Alternatives

  8. #8SingleStore(rank #9 in The 11 Best Vector Databases (2026))

    —

    A powerful distributed SQL database with integrated vector search capabilities.

    Full SingleStore review · Alternatives

  9. #9Rockset(rank #10 in The 11 Best Vector Databases (2026))

    —

    The best choice for real-time vector search on streaming data.

    Full Rockset review · Alternatives

  10. #10pgvector (PostgreSQL Extension)(rank #11 in The 11 Best Vector Databases (2026))

    —

    A pragmatic choice for adding vector search to an existing Postgres stack.

    Full pgvector (PostgreSQL Extension) review · Alternatives

  11. #11Pinecone(rank #1 in The 11 Best Vector Databases (2026))

    $99/mo+

    The top choice for a high-performance, fully managed vector database that just works.

    Full Pinecone review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .