Weaviate

Open-source vector database for AI-native applications.

Store, index, and search high-dimensional vectors with built-in vector generation, multi-tenancy, and RBAC support.1 save · weaviate.io
The AI database developers love | Weaviate

Weaviate operates as an open-source vector database platform, running on cloud-native infrastructure. It supports vector similarity search, retrieval-augmented generation, and reranking in a unified query interface.

  • Vector storage: stores both objects and vectors for semantic search.
  • Multi-tenancy: supports multiple tenants within a single deployment.
  • RBAC: implements role-based access control for secure operations.
  • Vector generation: generates vectors from text and images without external pipelines.
  • API interfaces: supports REST, gRPC, and GraphQL APIs for database interaction.

Free plan available; Flex plan starts at $45/month. Trusted by thousands of customers; 20M+ downloads.

Weaviate is ideal for AI teams building scalable, production-ready applications. Best suited for scenarios requiring semantic search and retrieval-augmented generation. Works well with cloud-native deployments.