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ZeusDB Vector Database

zeusdb.com

Free plan WindowsmacOSLinuxAPISelf-hosted
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Spec score 7.5 #19 of 27 in Vector Databases

What it is

ZeusDB Vector Database is a vector database for AI workloads including semantic search, retrieval-augmented generation, and recommendations. Its free, self-hosted Open Source plan provides a Python API and approximate nearest-neighbor search with HNSW graphs. Optional Product Quantization compresses vectors for memory efficiency. Metadata filtering is supported, and indexes, metadata, and quantized vectors can be saved and reloaded. Hybrid search is listed. Published wheels support Linux x86_64 and aarch64, macOS Apple Silicon, and Windows x86_64; the package page lists Python 3.10 through 3.14. LangChain and LlamaIndex integrations are available with vector-store filtering and persistence features. Hugging Face, Anthropic, OpenAI, and Semantic Kernel integrations are in development. ZeusDB lists an Enterprise plan with managed deployment, SSO, RBAC, audit trails, encryption, automated backups and restore, observability, SLAs, and priority support. The managed enterprise edition is in development. The company says it was founded and launched its first site in 2012.

Spec sheet

Purpose
ZeusDB Vector Database is presented as a high-performance vector database for AI workloads, including semantic search, RAG, and recommendations.Read 8 Oct 2026 · zeusdb.com
Integrations
The product page lists LangChain and LlamaIndex as available integrations; Hugging Face, Anthropic, OpenAI, and Semantic Kernel are listed as in development.Read 8 Oct 2026 · zeusdb.com
Support
The open-source plan is community supported, while the enterprise plan lists priority support.Read 8 Oct 2026 · zeusdb.com
Founded
2012Read 28 Sep 2026 · zeusdb.com
Company history
ZeusDB’s company page says it was founded and its first site launched in 2012.Read 8 Oct 2026 · zeusdb.com
Compression
Optional Product Quantization compresses vectors to improve memory efficiency.Read 8 Oct 2026 · zeusdb.com
Current enterprise status
The page says the managed enterprise edition is in development.Read 8 Oct 2026 · zeusdb.com
Filtering and persistence
The product supports metadata filtering and saving and reloading indexes, metadata, and quantized vectors.Read 8 Oct 2026 · zeusdb.com
Framework integration details
The integration documentation lists stable LangChain and LlamaIndex packages and describes vector-store features including metadata filtering and persistence.Read 8 Oct 2026 · docs.zeusdb.com
Platform support
Published package wheels are listed for Linux x86_64 and aarch64, macOS Apple Silicon, and Windows x86_64.Read 8 Oct 2026 · docs.zeusdb.com
Python versions
The package page lists support for Python 3.10 through 3.14.Read 8 Oct 2026 · docs.zeusdb.com
Search
It supports approximate nearest-neighbor search using HNSW graphs.Read 8 Oct 2026 · zeusdb.com
Security and operations
The page lists SSO, RBAC, audit trails, encryption, automated backups, restore, observability, and SLAs as enterprise features.Read 8 Oct 2026 · zeusdb.com

Plans and prices

Open Source Free Self hosted · Community supported · Python API · HNSW search · Optional product quantization · Persistence and metadata filters Read 8 Oct 2026 · zeusdb.com
Enterprise Priced on request Fully managed · SSO and RBAC · Audit trails and encryption · Automated backups and restore · Observability and SLAs · Priority support Read 8 Oct 2026 · zeusdb.com

Every ZeusDB Vector Database plan and price →

Strong points and limits

Strong points

  • Free open-source plan
  • HNSW approximate nearest-neighbor search
  • Optional vector quantization
  • Metadata filtering and persistence
  • Python 3.10–3.14 package support

Limits

  • Enterprise managed edition is in development
  • Open-source plan is self-hosted
  • Several listed integrations are still in development

Who it suits

It suits developers building AI search, RAG, or recommendation systems who can self-host a Python-accessible vector database. Enterprise capabilities are described for organizations needing managed operations and controls.

Verdict

ZeusDB offers a free self-hosted core with HNSW search, filtering, persistence, and Python support. Managed enterprise controls are planned but not yet available.

Where Specifiction places it

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