Open-source alternatives to Azure AI Search vectors

Azure AI Search vectors in the AI category. These are the open alternatives we recommend looking at.

Milvus

Vector database for fast similarity search over large numbers of embeddings, built to scale in cloud environments.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars
46.3k
Deployment
Docker

Qdrant

Vector database and search engine for similarity search with filtering, written in Rust.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars
34.9k
Deployment
Docker

Chroma

Embedding database and search layer used to give AI apps and agents access to your own data.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars
29.4k
Deployment
Docker

pgvector

PostgreSQL extension for storing vectors and running similarity search.

PostgreSQLPermissive

SaaS: YesClosed product: Yes

GitHub stars
23.2k
Deployment
Library

Weaviate

Vector database that stores objects and vectors and combines vector search with filters.

BSD-3-ClausePermissiveOpen core

SaaS: YesClosed product: Yes

GitHub stars
16.9k
Deployment
Docker
Login/SSO
OIDC

LanceDB

Embedded vector database for multimodal data that runs inside your app without a separate server.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars
11.6k
Deployment
Library

This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.

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