Qdrant

Qdrant is an open-source, Rust-powered vector database and search engine: it delivers high-performance, scalable similarity search for AI applications.

Qdrant functions as a production-ready vector database, purpose-built in Rust for unmatched speed and reliability, even when processing billions of high-dimensional vectors. It provides a convenient API to store, search, and manage vector embeddings (points) along with optional metadata (payloads). Key features include advanced filtering on those payloads, support for multiple distance metrics (Cosine, Dot Product, Euclidean), and cloud-native scalability. Developers leverage Qdrant for critical AI workloads like Retrieval-Augmented Generation (RAG) systems and large-scale recommendation engines, deploying via Docker, self-hosting, or the managed Qdrant Cloud service.

https://qdrant.tech