hnswlib VS Milvus

Compare hnswlib vs Milvus and see what are their differences.

InfluxDB - Power Real-Time Data Analytics at Scale
Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
www.influxdata.com
featured
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives
www.saashub.com
featured
hnswlib Milvus
12 105
4,015 26,979
1.5% 2.1%
6.2 10.0
19 days ago 2 days ago
C++ Go
Apache License 2.0 Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

hnswlib

Posts with mentions or reviews of hnswlib. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-03-14.
  • Show HN: A fast HNSW implementation in Rust
    6 projects | news.ycombinator.com | 14 Mar 2024
    How does this compare to hsnwlib - is it faster? https://github.com/nmslib/hnswlib
  • Show HN: Moodflix – a movie recommendation engine based on your mood
    1 project | news.ycombinator.com | 9 Nov 2023
    Last week I released Moodflix (https://moodflix.streamlit.app), a movie recommendation engine based to find movies based on your mood.

    Moodflix was created on top of a movie dataset of 10k movies from The Movie Database. I vectorised the films using Hugging Face's T5 model (https://huggingface.co/docs/transformers/model_doc/t5) using the film's plot synopsis, genres and languages. Then I indexed the vectors using hnswlib (https://github.com/nmslib/hnswlib). LLMs can understand a movie's plot pretty well and distill the similarities between a user's query (mood) to the movie's plot and genres.

    I have got feedback from close friends around linking movies to other review sites like IMDB or Rotten Tomatoes, linking movies to sites to stream the movie and adding movie posters. I would also love to hear from the community what things you like, what you want to see and what things you consider can be improved.

  • Hierarchical Navigable Small Worlds
    2 projects | news.ycombinator.com | 10 Jul 2023
    Actually the "ef" is not epsilon. It is a parameter of the HNSW index: https://github.com/nmslib/hnswlib/blob/master/ALGO_PARAMS.md...
  • Vector Databases 101
    3 projects | /r/datascience | 25 Jun 2023
    If you want to go larger you could still use some simple setup in conjunction with faiss, annoy or hnsw.
  • [P] Compose a vector database
    2 projects | /r/MachineLearning | 13 May 2023
    Many vector databases are using Hnswlib and that is a supported vector index alongside Faiss and Annoy.
  • Faiss: A library for efficient similarity search
    14 projects | news.ycombinator.com | 30 Mar 2023
    hnswlib (https://github.com/nmslib/hnswlib) is a strong alternative to faiss that I have enjoyed using for multiple projects. It is simple and has great performance on CPU.

    After working through several projects that utilized local hnswlib and different databases for text and vector persistence, I integrated hnswlib with sqlite to create an embedded vector search engine that can easily scale up to millions of embeddings. For self-hosted situations of under 10M embeddings and less than insane throughput I think this combo is hard to beat.

    https://github.com/jiggy-ai/hnsqlite

  • Storing OpenAI embeddings in Postgres with pgvector
    9 projects | news.ycombinator.com | 6 Feb 2023
    https://github.com/nmslib/hnswlib

    Used it to index 40M text snippets in the legal domain. Allows incremental adding.

    I love how it just works. You know, doesn’t ANNOY me or makes a FAISS. ;-)

  • Seeking advice on improving NLP search results
    4 projects | /r/LanguageTechnology | 22 Jan 2023
    3000 texts doesn't sound like to many, so may be a brute force cos calculation to find the most similar vector would work. If that's taking too much time, may be look at KNN or ANN modules to speed up finding the most similar vector. I use hsnwlib in knn mode for this. SOrt through about 350,000 vectors in about 30-50 msec.
  • How to Build a Semantic Search Engine in Rust
    3 projects | news.ycombinator.com | 9 Nov 2022
    hnswlib is in cpp and has python bindings (you should be able to make your own for other languages).

    https://github.com/nmslib/hnswlib

  • Anatomy of a txtai index
    4 projects | dev.to | 2 Mar 2022
    embeddings - The embeddings index file. This is an Approximate Nearest Neighbor (ANN) index with either Faiss (default), Hnswlib or Annoy, depending on the settings.

Milvus

Posts with mentions or reviews of Milvus. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-01.
  • Ask HN: Who is hiring? (April 2024)
    10 projects | news.ycombinator.com | 1 Apr 2024
    Zilliz (zilliz.com) | Hybrid/ONSITE (SF, NYC) | Full-time

    I am part of the hiring team for DevRel

    NYC - https://boards.greenhouse.io/zilliz/jobs/4307910005

    SF - https://boards.greenhouse.io/zilliz/jobs/4317590005

    Zilliz is the company behind Milvus (https://github.com/milvus-io/milvus), the most starred vector database on GitHub. Milvus is a distributed vector database that shines in 1B+ vector use cases. Examples include autonomous driving, e-commerce, and drug discovery. (and, of course, RAG)

    We are also hiring for other roles that I am not personally involved in the hiring process for such as product managers, software engineers, and recruiters.

  • Unlock Advanced Search Capabilities with Milvus and Read about RAG
    1 project | dev.to | 22 Mar 2024
    Get started with Milvus on GitHub.
  • Milvus VS pgvecto.rs - a user suggested alternative
    2 projects | 13 Mar 2024
  • How to choose the right type of database
    15 projects | dev.to | 28 Feb 2024
    Milvus: An open-source vector database designed for AI and ML applications. It excels in handling large-scale vector similarity searches, making it suitable for recommendation systems, image and video retrieval, and natural language processing tasks.
  • Simplifying the Milvus Selection Process
    3 projects | dev.to | 19 Feb 2024
    Selecting the right version of open-source Milvus is important to the success of any project leveraging vector search technology. With Milvus offering different versions of its vector database tailored to varying requirements, understanding the significance of selecting the correct version is key for achieving desired outcomes.
  • 7 Vector Databases Every Developer Should Know!
    4 projects | dev.to | 8 Feb 2024
    Milvus is an open-source vector database designed to handle large-scale similarity search and vector indexing. It supports multiple index types and offers highly efficient search capabilities, making it suitable for a wide range of AI and ML applications, including image and video recognition, natural language processing, and recommendation systems.
  • Ask HN: Who is hiring? (February 2024)
    18 projects | news.ycombinator.com | 1 Feb 2024
    Zilliz is hiring! We're looking for REMOTE and/or HYBRID roles in SF

    Zilliz is the company behind Milvus (https://github.com/milvus-io/milvus), the most widely adopted vector database. Vector databases are a crucial piece of any technology stack looking to take advantage of unstructured data. Most recently and notably, Retrieval Augmented Generation (RAG). For RAG, vector databases like Milvus are used as the tool to inject customized data. In other words, vector databases make things like customized chat bots, personalized product recommendations, and more possible.

    We are hiring for Developer Advocates, Senior+ Level Engineers and Product people, and Talent Acquisition. Check out all the roles here: https://zilliz.com/careers

  • Qdrant, the Vector Search Database, raised $28M in a Series A round
    8 projects | news.ycombinator.com | 23 Jan 2024
    Good on them, I know the crustaceans are out here happy about this raise for a Rust based Vector DB!

    (now I'm gonna plug what I work on)

    If you're interested in a more scalable vector database written in Go, check out Milvus (https://github.com/milvus-io/milvus)

  • Open Source Advent Fun Wraps Up!
    10 projects | dev.to | 5 Jan 2024
    But before we do, I do want to say that 🤩 all these lovely Open-Source projects would love a little 🎉💕 love by getting a GitHub star ⭐ for their efforts. Including Open Source Milvus 🥰
  • First 15 Open Source Advent projects
    16 projects | dev.to | 15 Dec 2023
    1. Milvus by Zilliz | Github

What are some alternatives?

When comparing hnswlib and Milvus you can also consider the following projects:

faiss - A library for efficient similarity search and clustering of dense vectors.

pgvector - Open-source vector similarity search for Postgres

annoy - Approximate Nearest Neighbors in C++/Python optimized for memory usage and loading/saving to disk

qdrant - Qdrant - High-performance, massive-scale Vector Database for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

awesome-vector-search - Collections of vector search related libraries, service and research papers

Weaviate - Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

semantic-search-through-wikipedia-with-weaviate - Semantic search through a vectorized Wikipedia (SentenceBERT) with the Weaviate vector search engine

Elasticsearch - Free and Open, Distributed, RESTful Search Engine

txtai - 💡 All-in-one open-source embeddings database for semantic search, LLM orchestration and language model workflows

Face Recognition - The world's simplest facial recognition api for Python and the command line