hybrid-search

Milvus

MilvusAIOpen

Open-source vector database for GenAI search at billion scale

Milvus is an Apache-2.0 open-source vector database that stores and indexes embedding vectors for millisecond similarity search over very large collections.

Qdrant

QdrantAIOpen

Open-source vector database for AI search at any scale

Qdrant is an Apache-2.0 open-source vector database written in Rust that serves filtered similarity search over embedding collections for AI retrieval.

Chroma

ChromaAIOpen

Open-source vector database for AI search and retrieval

Chroma is an open-source vector database for AI retrieval, storing embeddings with metadata and serving vector, full-text, and regex search in one query.

Weaviate

WeaviateAIOpen

Open-source AI-native vector database for search and RAG

Weaviate is an open-source vector database for AI search, combining vector, keyword, and hybrid retrieval with self-hosted Docker or managed cloud deployment.