knn

Manticore Search introduces early termination for HNSW-based KNN vector search, reducing distance computations by up to 80% for large k values while maintaining precision within 2-4% of full search.

pynear 2.3 is a fast KNN library with SIMD acceleration and drop-in compatibility with scikit-learn, offering exact and approximate cosine indices and outperforming Faiss on binary descriptors in some contexts.