If you are just getting into this tech, like me, then this article leads down the rabbit hole of different index types supported in different vector stores. Most easy-to-use vector stores only use HNSW indices, which is "good enough".<p>A few offer different types of indices. Milvus[1] and FAISS[2] are a couple that support IVF indices. It's great to see another lightweight tool that does this with GPU acceleration.<p>1. <a href="https://objectbox.io/vector-database/" rel="nofollow noreferrer">https://objectbox.io/vector-database/</a><p>2. <a href="https://www.pinecone.io/learn/series/faiss/vector-indexes/" rel="nofollow noreferrer">https://www.pinecone.io/learn/series/faiss/vector-indexes/</a>