Developer Tools·Standings

Compare AI Databases

AI databases store and search information for AI applications; choose one by how it can be deployed and which search and data controls it offers.

Compare free plans and starting prices, deployment options, index types, vector-dimension limits, metadata filtering, hybrid search, and managed backups. The signal score is out of 10; API, open-source, and free-tier marks show those listed attributes.

  • 40 platforms
  • 3 with a public API on this page
  • 24 with a free tier
  • Checked 7 Oct 2026
  1. 1
    C
    Chromatrychroma.com

    ChromaDB is open-source search infrastructure for AI applications, combining vector, full-text, regex, and metadata search.

    7.7 APIOpenFree Free tier · from $250/mo
  2. 2
    V
    Vespavespa.ai

    AI search software that handles vectors, text, structured data, and real-time ranking.

    7.7 APIOpenFree Free tier · from $0.18/mo (lower tiers unpriced)
  3. 3
    CC
    ClickHouse Cloudclickhouse.com

    An open-source database service with a 30-day trial and Linux, macOS, Windows, and web access.

    7.3 APIOpenFree From $25.30/mo
  4. 4
    SH
    SingleStore Heliossinglestore.com

    Cloud database service with free and paid plans, a trial, and web, API, or self-hosted access.

    6.7 APIOpenFree Free tier
  5. 5
    P
    Pineconepinecone.io

    A managed database for vector search, available through APIs and web or desktop platforms.

    6.6 APIOpenFree Free tier · from $20/mo
  6. 6
    Q
    Qdrantqdrant.tech

    A vector database available through API, web, desktop, or self-hosted setups, with a free plan.

    6.5 APIOpenFree Free tier
  7. 7
    K
    Kineticakinetica.com

    A database available through an API, web, desktop, Linux, or self-hosted deployment, with a free plan.

    6.4 APIOpenFree Free tier · $1.80 usage-based
  8. 8
    RI
    Redis Insightredis.io

    A free Redis tool for viewing and editing data, checking slow logs, and running commands.

    6.4 APIOpenFree Free tier
  9. 9
    M
    Milvusmilvus.io

    A free, open-source vector database with several search methods and deployment sizes from local to Kubernetes.

    6.3 APIOpenFree Free tier
  10. 10
    O
    OpenSearchopensearch.org

    OpenSearch is a community-driven, open-source search and analytics suite for ingesting, searching, visualizing, and analyzing data.

    6.3 APIOpenFree Free tier
  11. 11
    W
    Weaviateweaviate.io

    Weaviate is an open-source AI vector database for storing, indexing, and searching high-dimensional vectors, used as a foundation for search, RAG, and agents.

    6.2 APIOpenFree Free tier · $45 usage-based
  12. 12
    N
    Neonneon.com

    A cloud PostgreSQL service with a free plan, autoscaling, database branches, and connection pooling.

    6.2 APIOpenFree Free tier · $0.11 usage-based
  13. 13
    S
    Supabasesupabase.com

    A backend platform with Postgres, sign-in, file storage, live updates, and server-side functions.

    6.2 APIOpenFree Free tier · from $25/mo
  14. 14
    S
    SurrealDBsurrealdb.com

    A self-hosted database with vector search and 1GB of storage free for its first instance.

    6.1 APIOpenFree Free tier · from $0.19/mo
  15. 15
    E
    Elasticsearchelastic.co

    An open-source search and analytics engine for structured, unstructured, and vector data, with a free plan.

    6.1 APIOpenFree Free tier · from $99/mo
  16. 16
    V
    Vectodanielmevit.github.io

    A desktop app that turns PNG and JPG images into editable SVG files; free plan available.

    6.1 APIOpenFree Free tier · $7.99 one-time
  17. 17
    ZC
    Zilliz Cloudzilliz.com

    A managed Milvus service for vector, filtered, hybrid, and full-text search, with a free plan.

    6.0 APIOpenFree Free tier
  18. 18
    AA
    Amazon Auroraaws.amazon.com

    A managed relational database supporting PostgreSQL, MySQL, and DSQL, with a free plan.

    5.9 APIOpenFree Free tier
  19. 19
    AC
    Azure Cosmos DB for NoSQLazure.microsoft.com

    A NoSQL database with vector search, a free plan, and a 30-day trial.

    5.9 APIOpenFree Free tier
  20. 20
    CV
    Cloudflare Vectorizedevelopers.cloudflare.com

    A vector database for Cloudflare Workers apps, with a free plan and support for OpenAI vectors.

    5.9 APIOpenFree Free tier
  21. 21
    KA
    KDB.AIkdb.ai

    A vector database and search engine with hybrid search, metadata filters, and time-based similarity.

    5.9 APIOpenFree Free tier
  22. 22
    TC
    TileDB Cloudtiledb.com

    A data platform that analyzes multidimensional arrays in your own object storage, with a free plan.

    5.9 APIOpenFree Free tier · from $10/mo
  23. 23
    L
    LanceDBlancedb.com

    A free, open-source database for searchable tables, with vector, text, and hybrid search.

    5.8 APIOpenFree Free tier
  24. 24
    T
    Tigristigrisdata.com

    S3-compatible object storage with regional placement, snapshots, and recoverable deleted files.

    5.8 APIOpenFree Free tier · $0.01 usage-based
  25. 25
    V
    Valdvald.vdaas.org

    An open-source engine for distributed vector search, with automatic indexing and horizontal scaling.

    5.8 APIOpenFree Free tier

Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise

How to choose

Where does the database need to run?

Start with the deployment options that fit your setup. The board compares deployment, and platform labels include web, API, self-hosted, Linux, macOS, and Windows.

For example, Alibaba Cloud AnalyticDB lists web support, while Amazon OpenSearch Service lists web and API. Check the individual entry against the environment you plan to use.

Compare index types, maximum vector dimensions, metadata filtering, and hybrid search. These fields help you see whether a database's listed capabilities match the way your application needs to store and find information.

A vector-dimension limit describes the size allowed for a vector, a numerical representation of information. Check the published limit for your data and model.

Can I try it for free, and what does it cost?

Check whether the entry has a free plan or trial, then compare its paid starting price. A free plan and a time-limited trial are different offers.

Chroma lists a free plan with paid service from $250 per month. AlloyDB AI lists a 30-day trial and no free plan.

Does it offer an API or open-source code?

If your application needs to connect directly, check the API mark and the entry's platform details. An API is a defined way for software to communicate with a service.

If you need to inspect or change the code, check the open-source mark and the tool's licence. The board also compares managed backups, which may matter for your data-management needs.

Questions

What should I compare when choosing an AI database?

Compare deployment, index types, maximum vector dimensions, metadata filtering, hybrid search, managed backups, pricing, and whether the tool offers an API or open-source code.

What is the difference between a free plan and a free trial?

A free plan is a no-cost plan; a free trial gives temporary access. Check the listed terms and paid starting price before choosing.

What does the AI database signal score mean?

It is a score out of 10 based on published signals: usage, public API, documentation depth, open-source code, and a free tier.

How can I tell whether an AI database will work with my setup?

Compare its deployment and platform details with your environment, and check for an API if your software needs to connect to it.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure