Qdrant - Vector Search Engine

Qdrant is an open-source vector similarity search engine providing production-ready API for nearest neighbor search across embeddings optimized for high-dimensional vector operations. It supports filtering payload indexing and hybrid search combining semantic and keyword matching for improved retrieval accuracy. Qdrant offers both cloud service and self-hosted deployment with robust scaling capabilities for billions of vectors making it suitable for large-scale RAG applications and recommendation systems requiring real-time performance.