Weaviate

Developer Toolsweaviate.io

Open-source vector database for AI-native applications

Developer ToolsOpen SourceFree tier
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Pricing
Free open-source; Serverless cloud from $25/mo; Enterprise custom
Free tier available
Platform
Cloud · Self-hosted · Docker · Kubernetes
API available

Overview

Weaviate — Open-source vector database for AI-native applications

Weaviate is a cloud-native open-source vector database built for AI applications. It stores both vectors and objects, supports hybrid search (vector + keyword), and has built-in ML model integration. Used for semantic search, recommendation systems, and retrieval-augmented generation (RAG) applications.

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Vector + object storage

Hybrid search

Built-in ML modules

GraphQL API

Features & capabilities

Everything it does, in plain English.

FeatureVector + object storageIncluded
FeatureHybrid searchIncluded
FeatureBuilt-in ML modulesIncluded
FeatureGraphQL APIIncluded
FeatureMulti-modal supportIncluded
API AccessProgrammatic access available for developers.Available
PlatformsCloud · Self-hosted · Docker · Kubernetes

The honest take

Where it shines, where it stumbles.

✓ Pros

  • ✓Open-source
  • ✓Built-in ML model support
  • ✓Good hybrid search

! Watch-outs

  • !Complex to configure well
  • !Requires understanding of vectors

Who it's for

Where Weaviate pays for itself fast.

— Use case
Semantic search
— Use case
RAG applications
— Use case
Recommendation systems
— Use case
Image search

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