Best AI tools for vector databases

Pinecone

Featured

RAG · Hosted vector DB (not an LLM)

8.8

Managed vector database for production-scale similarity search.

DataStax Astra DB

RAG · Bring-your-own embeddings; integrates with OpenAI, Cohere, Hugging Face, Mistral, NVIDIA NIM, and Vertex AI via server-side vectorize

8.6

Serverless vector and document database for production RAG and AI agents

MongoDB Atlas Vector Search

RAG · Bring-your-own embeddings (OpenAI, Cohere, open models); native Voyage AI embeddings and rerankers

8.6

Vector search built into the operational database you're already using.

Feast

RAG

8.2

Open-source feature store that serves consistent features to ML training and online inference, with RAG vector search built in.

LanceDB

RAG

8.2

Open-source multimodal lakehouse and vector database built for AI training and retrieval at petabyte scale.

Agentset

RAG · Multi-model (Claude, OpenAI, Google, xAI, Cohere, Mistral, DeepSeek)

7.3

Production-ready RAG infrastructure with agentic search, citations, and model-agnostic plumbing.

Epsilla

RAG · Multi-model

7.3

Agent-as-a-Service platform with managed RAG and a no-code builder for vertical enterprise AI.

PostgresML

RAG · Multi-model (Llama, Mistral, open-source embeddings)

7.1

PostgreSQL extension that runs embeddings, vector search, and LLM inference inside your database.

Rivestack

RAG · OpenAI embeddings (auto-embeddings)

7.1

Managed Postgres with pgvector on dedicated NVMe, pitched as a cheaper RAG backend than Pinecone or Supabase.

HelixDB

RAG

7.0

Unified graph-and-vector database built for AI agent memory and GraphRAG.

Singlebase Cloud

RAG · Multi-model

7.0

AI-native Firebase alternative bundling document DB, vector DB, auth, storage, and built-in AI services.

Superduper

RAG · Multi-model

7.0

Enterprise AI agent orchestration that brings RAG and agents to your existing data stack without migration.

Context Data

RAG · Multi-model

6.8

Enterprise data platform for deploying private RAG pipelines without infrastructure plumbing.

TurboVec

RAG

6.8

Rust-powered vector index with 2-4 bit TurboQuant compression for SIMD-accelerated RAG search.

ClickHouse

RAG

The open-source columnar database powering real-time analytics — and, increasingly, LLM observability and RAG backends.

Supabase

RAG

Open-source Firebase alternative built on Postgres with a first-class pgvector AI toolkit.

TiDB

RAG

AI-native distributed SQL database with built-in vector search, agent memory, and RAG pipelines

Turbopuffer

RAG · bring-your-own embeddings (any provider)

Fast search on object storage

Unstructured.io

RAG · In-house layout and table models plus optional OpenAI / Anthropic / Bedrock embeddings and enrichment

Turn unstructured enterprise documents into LLM-ready data

Voyage AI

RAG · in-house (voyage-3.5, voyage-4 series, voyage-code-3, voyage-finance-2, voyage-law-2, voyage-multimodal-3.5, voyage-context-3, rerank-2.5)

State-of-the-art embedding models and rerankers purpose-built for retrieval and RAG.