NNext.net – A Firebase-like managed vector storage for ML applications
Hi HN. Peter here. As a machine learning engineer, I mostly think in terms of feature vectors, embeddings, and matrices. One of the most useful byproducts of deep neural networks is embeddings because they allow us to represent high-dimensional data in terms of lower-dimensional latent vectors. These feature vectors can be used for downstream applications like similarly search, recommendation systems and near duplicate detection. As an ML engineer, I was frustrated by the lack of a datastore in which vectors are first-class citizens. As a result, most ML engineers, including myself, end up…
NNext.net – A Firebase-like managed vector storage for ML applications launched on March 3, 2021 with 37 votes, #1,326 of 3,696 launches that month and more than 75% of that year's launches.
In plain words
NNext.net is a managed vector storage service designed for machine learning applications, offering a database where feature vectors and embeddings are first-class citizens. It eliminates the need for workarounds like storing vectors in SQL/NoSQL databases or Redis, providing native support for vector-based query operations such as nearest neighbor search. The platform serves ML engineers building applications including similarity search, recommendation systems, and duplicate detection.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN. Peter here. As a machine learning engineer, I mostly think in terms of feature vectors, embeddings, and matrices. One of the most useful byproducts of deep neural networks is embeddings because they allow us to represent high-dimensional data in terms of lower-dimensional latent vectors. These feature vectors…
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Embeddinghub: A vector database built for Machine Learning embeddings2021 · github.com · ▲118The Virtual Feature Store. Turn your existing data infrastructure into a feature store. - featureform/featureform

HelixDB – Open-source vector-graph database for AI applications (Rust)2025 · github.com · ▲237Hey HN, we want to share HelixDB (https://github.com/HelixDB/helix-db/), a project a college friend and I are working on. It’s a new database that natively intertwines graph and vector types, without sacrificing performance. It’s written in Rust and our initial focus is on supporting RAG. Here’s a video runthrough: https://screen.studio/share/szgQu3yq. Why a hybrid? Vector databases are useful for similarity queries, while graph databases are useful for relationship queries. Each stores data in a way that’s best for its main type of query (e.g.…

HelixDB – A graph database built on object storageJun 2026 · github.com · ▲159Hey HN, it’s been just over a year since we launched HelixDB (https://news.ycombinator.com/item?id=43975423), a project a friend and I started in college. It’s an OLTP graph database built on object-storage, with native vector search and full-text search (FTS). Why graph, vector and FTS? Graph databases provide a natural cognitive model for data, vectors allow for a semantic understanding of the entities and relationships in the graph, and FTS provides more specific filtering. Many AI-driven applications attempt to combine all of these functionalities by stitching together…
- AGA GPU-accelerated binary vector index2025 · rlafuente.com · ▲65
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