ospipe

Runtime engine for RVF including store API, copy-on-write, and compaction features. Powers persistent and efficient vector data management in RuVector applications.

Rust crate for quantum circuit simulation and coherence assessment using min-cut gates. Integrates MWPM decoder and post-quantum signatures providing quantum-resistant security for AI safety in quantum-inspired vector computing environments.

ClickHouse is a columnar OLAP database with vector indexes (ANN via AMM, brute-force), supporting SQL queries over vectors + structured data at petabyte scale. Excels in aggregations with vectors. For analytics workloads with embeddings; faster ingestion than Postgres pgvector for big data.

NucliaDB is a versatile vector database designed for data scientists and machine learning experts working with HuggingFace and other data pipeline platforms. Built on Tantivy in Rust and Python, it efficiently indexes large datasets with multi-tenant support.

Open-source embeddings database for semantic search, workflows, and AI applications with vector storage and retrieval capabilities.

Haystack is a Python library for building vector search and embedding-based retrieval pipelines, integrating ANN indexes without requiring full databases. Key features include support for HNSW, FAISS indexes, quantization options, and multi-language embeddings. Perfect for prototyping RAG systems and embedded AI apps; more flexible than hnswlib, lighter than Milvus for development workflows.