Qdrant

Qdrant is an open-source Vector Database released in 2021, written in Rust, and known for performance and rich filtering. Its expressive payload filters, fast HNSW index, and distributed collections target large-scale production workloads. The open-source binary runs self-hosted, while Qdrant Cloud offers a managed option. It plays in the same market as Pinecone and Weaviate and is a frequent pick for performance-sensitive or cost-conscious production teams.