Image Similarity Search

Qdrant is a Rust-written, production-ready vector database and similarity search engine with REST/gRPC APIs, filtering, hybrid search, quantization, and sharding. It's a common retrieval backend for RAG, semantic search, recommendations, and image search.

RAG | Rust · vector-database · vector-search

Postgres extension adding vector types plus exact and approximate nearest neighbor search with HNSW and IVFFlat indexes. Supports single, half, binary, and sparse vectors with L2, inner product, cosine, L1, Hamming, and Jaccard distances for embeddings and RAG retrieval.

RAG | C · vector-search · embeddings

Weaviate is a Go-based, cloud-native vector database storing objects and vectors together, so you can combine vector similarity search with structured filtering, hybrid BM25 search, integrated vectorization, RAG, and reranking in one API.

RAG | Go · vector-database · semantic-search