Qdrant

The open source vector database in Rust for semantic search at scale.

Qdrant is an open source vector database written in Rust: it indexes embeddings and serves low-latency similarity search, even across millions of vectors. Payload filtering combines semantics and business criteria in one query, and hybrid search (dense + sparse) sharpens relevance. Managed cloud or self-hosted, it's our choice when a RAG pipeline has to handle real load or stay on your own infrastructure.