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Zilliz Blog
zilliz.com · Company blog · on HN since 2021
Zilliz, the company behind the Milvus vector database, publishes posts on vector search, indexing, benchmarks, and AI infrastructure.
What HN saysHN commenters link it for its vector database explainers and benchmarks, question missing Vespa results on its leaderboard, and use its hiring posts.
24HN people shared it
16linked it in comments
122stories submitted
711story points
4 months agolast shared
2021people per year2026
Most-shared posts
- 1Vector database vs. vector search libraries4 people · 2 points · first shared 2022 · discussion on HN
- 2Nvidia's Cagra: Game-Changer for GPU-Accelerated Graph Indexing in Vector DBs3 people · 9 points · first shared 2024 · discussion on HN
- 3VectorDB benchmark and some results for both Open Source and Cloud Service3 people · 6 points · first shared 2023 · discussion on HN
- 4Yet Another Cache, but for ChatGPT3 people · 4 points · first shared 2023 · 1 comments on HN
- 5Vector Similarity Search2 people · 9 points · first shared 2022 · discussion on HN
- 6Zilliz Vector Search Algorithm Dominates All Four Tracks of BigANN2 people · 7 points · first shared 2024 · discussion on HN
- 7Vector Index Basics and the Inverted File Index2 people · 4 points · first shared 2022 · 1 comments on HN
- 8My Wife Wanted Dior. I Spent $600 on Claude Code to Vibe-Code Database Instead2 people · 4 points · first shared 2026 · 1 comments on HN
- 9Leaderboard of Vector Databases2 people · 3 points · first shared 2023 · 1 comments on HN
- 10A VectorDB for Your Jupyter Notebook2 people · 2 points · first shared 2023 · discussion on HN
- 11General availability of Zilliz Cloud, vector database as a service2 people · 2 points · first shared 2022 · discussion on HN
- 12ChatGPT+ Vector database and prompt-as-code – The CVP Stack2 people · 1 points · first shared 2023 · discussion on HN
- 13Careers2 people · first shared 2023
- 14Will Amazon S3 Vectors kill vector databases or save them?1 people · 280 points · first shared 2025 · 122 comments on HN
- 15Tokens, n-grams, and bag-of-words models (2023)1 people · 166 points · first shared 2023 · 16 comments on HN
What HN people wrote when they linked it
throwaw12 · 2025-07-24
GitHub PR shows Vespa on the image, but I can't find Vespa results on the VDBBench website https://zilliz.com/vdbbench-leaderboard
Am I missing anything? (I love Vespa.ai)
yujian · 2024-02-01
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
fzliu · 2023-05-01
Zilliz | Onsite/Hybrid (Redwood City, CA, USA) - https://zilliz.com/
Zilliz is the company behind Milvus, the world's most popular open-source vector database. We're hiring engineers, developer advocates, product marketing, and product managers. You can view and apply for open roles at https://zilliz.com/careers, or feel free to reach out to me directly.
mrintellectual · 2022-07-19
Great article. We used something very similar to help implement simlarity search at Yahoo a couple years back (https://yahooresearch.tumblr.com/post/158115871236/introducing-similar… We were using a indexing strategy called Locally Optimized Product Quantization, which worked great in terms of query times but required a training procedure which made successive inserts fairly inefficient.
Thankfully, we have a much wider variety of indexing options these days (https://milvus.io/docs/index.md) in addition to powerful vector databases (https://zilliz.com/learn/what-is-vector-database). I'm glad to see the barrier to entry for semantic image retrieval becoming lower and lower as ML infrastructure matures.
[EDIT] Disclosure: I work at Zilliz.
PhilippGille · 2025-02-19
You can quantize an embedding: https://zilliz.com/learn/what-are-binary-vector-embedding#How-to-Gener…
Quizzical4230 · 2024-12-25
Absolutely!
Here is a graph showing the difference. [^1]
Known ID is arXiv ID that is in the vector database, Unknown IDs need the metadata to be fetched via API. Text is embedded via the model's API.
FLAT and IVF_FLAT are different indexes used for the search. [^2]
[1]: https://raw.githubusercontent.com/mitanshu7/dumpyard/refs/heads/main/s…
[2]: https://zilliz.com/learn/how-to-pick-a-vector-index-in-milvus-visual-g…
redskyluan · 2024-12-05
Maybe check this https://zilliz.com/pricing
Yan easily store 1B data into Zilliz Serverless and the cost is incredible cheap
kkielhofner · 2024-11-01
> they're not a complete replacement for simpler methods like BM25
There are embedding approaches that balance "semantic understanding" with BM25-ish.
They're still pretty obscure outside of the information retrieval space but sparse embeddings[0] are the "most" widely used.
[0] - https://zilliz.com/learn/sparse-and-dense-embeddings
stephen37 · 2024-04-23
It's nice to begin with but you usually quickly hit a scale issue from what I tried and talked to different people using it.
Also they only offer index stored in Memory as far as I know, also lack the support of different index or more advanced ones like GPU index.
https://zilliz.com/comparison/milvus-vs-pgvector
DISCURSIVE · 2024-04-19
Yeah, we usually just say vector embeddings are the numerical representation of that piece of unstructured data. This glossary page put it together quite nicely. https://zilliz.com/glossary/vector-embeddings
Fendyfd · 2024-01-24
FYI the VectorDBBench leaderboard: https://zilliz.com/vector-database-benchmark-tool?database=ZillizCloud…
bayesian_limit · 2023-10-05
We conducted benchmark tests on Elastic's queries per second (QPS) performance using datasets of 500,000 and 1 million vectors. Result was Zilliz is 13x and 22x faster, per number of vectors respectively. https://zilliz.com/blog/elasticsearch-cloud-vs-zilliz
We also conducted a benchmark comparing Pgvector to both Milvus (open source) and Zilliz (managed, with a free tier option). When running the OSS Milvus on 2 CPUs and 8 GiB memory, Pgvector was found to be 5 times slower. You can check out the detailed performance charts at the bottom of this blog post:
https://zilliz.com/blog/getting-started-pgvector-guide-developers-expl…
Feel free to explore our open-source benchmarking tool, which allows you to examine our methodology and even compare it with your vector database. https://github.com/zilliztech/VectorDBBench
chandureddyvari · 2023-08-15
Interesting project. How does it fare on scaling? We were evaluating vector dbs and since we were into b2b saas, we are keen on the sharding, scaling and multi tenancy features. currently we are more inclined towards milvus. https://zilliz.com/comparison/qdrant-vs-milvus
ChrisPzilla · 2023-05-09
Here is an article on Indexes https://zilliz.com/blog/vector-index
min_tian · 2022-07-01
There is a how-reverse-image-search-works visualization.
It explains how ivf_flat in faiss finds the approximate images in a huge amount of vectors.
https://zilliz.com/blog/Visualize-Reverse-Image-Search-with-Feder
codingjaguar · 2024-10-31
This article depicts a perfect world and links it to a solution which is fairly distant from that. I understand the wishful thinking of having a "magic box" for search infrastructure but as someone worked on web-scale search at Google for years I'd say the reality isn't that simple.
1. The real problem in embedding data lifecycle management is changing the embedding mode, which involves a migration process. You can't really solve that by simply streamline the vectorization and suddenly use a new model for new data ingested. You need the non-fancy migration process: create a new collection, batch generate new vectors with the new model, port all of them there, meanwhile doing dual write for all newly ingested documents, and switch search traffic to the new collection once batch ingestion is done. Streamlining vectorization as part of the ingestion call doesn't solve that. Though it is an interesting feature to lower mental complexity, that's why at Zilliz (a vector db startup) our product https://zilliz.com/zilliz-cloud-pipelines supports that and our open-source Milvus plans supporting streamlining API call to embedding service in 3.0 version: https://milvus.io/docs/roadmap.md. That said I must state that changing the embedding model is more difficult than what the article makes it feels like. We provide tools like bulk import to batch port a whole dataset of vector embeddings with other metadata like original text or image urls. But solving the problem with one "magic box"…