Pinecone
★ 4.6The leading managed vector database — high-performance similarity search for AI applications at any scale.
small, mediumfree
Qdrant
★ 4.6High-performance vector search engine — built in Rust for maximum speed and on-premise deployment.
medium, largefree
Weaviate
★ 4.5Open-source vector database with built-in vectorization — AI-native search and knowledge graphs.
small, mediumfree