The 17 Best AI Vector Database Tools for Your Problem in 2026

Jina AI, BytePlus, Fulcra, Qdrant, Knowledge Plane, TemplateAI, GoodMem, GitNexus, Self-Hosted AI Stack, Polygres are strong paid/free AI Vector Database options for common problems.

Jina AI

Jina AI provides embeddings, rerankers, web reader, and small language models to build powerful search applications.

jina.ai

2020-2026. This website and all associated co

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BytePlus

AI-Native Cloud for Enterprise Growth: Build, deploy, and scale AI with cutting-edge models, tools, and infrastructure.

byteplus.com

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Fulcra

Fulcra is a user-owned context backend that gives AI agents one shared, controllable context lake for data, knowledge, and agent work.

fulcradynamics.com

Fulcra Dynamics

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Qdrant

Qdrant is an open-source, high-performance vector search engine and database written in Rust, designed for AI applications.

qdrant.tech

Qdrant

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Knowledge Plane

Shared memory for AI agents and teams, auto-updating from code, docs, and chats.

knowledgeplane.io

Knowledge Plane

🇧🇬Bulgaria

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TemplateAI

The #1 NextJS template for AI apps. Build full-stack AI apps fast with zero boilerplate.

templateai.co

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GoodMem

GoodMem is a governed memory infrastructure layer that gives AI agents persistent, searchable context across any model or provider.

goodmem.ai

GoodMem

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GitNexus

GitNexus indexes codebases into a knowledge graph for AI agents, improving code understanding and automation.

akonlabs.com

Akon Labs

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Self-Hosted AI Stack

An open-source Docker Compose project for running local models, chat, documents, voice, and AI tools on your own infrastructure.

selfhostedaistack.com

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Polygres

Polygres turns the Postgres you already run into internal search for AI agents.

polygres.com

Polygres

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HydraDB

HydraDB is a graph database built on object storage, designed for modern AI workloads with high recall and low latency.

hydradb.com

🇺🇸United States

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Infrabase.ai

A hand-curated directory for discovering and comparing AI infrastructure tools across 8 categories.

infrabase.ai

Infrabase.ai

🇸🇪Sweden

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LM-Kit.NET

LM-Kit.NET is the complete local AI runtime for .NET, offering seven capability pillars on one adaptive inference engine.

lm-kit.com

LM-Kit

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Honcho

AI-native memory platform providing stateful context for agents with continual learning and token efficiency.

honcho.dev

Plastic Labs

🇺🇸United States

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Ragie

Ragie is a fully managed RAG-as-a-Service platform providing context for AI agents, assistants, and apps.

ragie.ai

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Octen

The search infrastructure for AI, providing real-time web search APIs and embedding models for AI agents and LLMs.

octen.ai

2026 Octen Inc.

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Progress Agentic RAG

Turn enterprise documents, files and media into an AI-ready knowledge with the Progress Agentic RAG solution which powers assistants, agents and search from one governed layer.

nuclia.com

Progress.com

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