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hora

hora-search/hora

efficient approximate nearest neighbor search algorithm collections library written in Rust

GitHub Website

GraphCanon updated Sep 20, 2026 · GitHub synced Sep 20, 2026

57views this month

2.7k stars77 forksLast push Feb 17, 2026 Rust Apache-2.0

Decision brief

Hora is a Rust-based library for high-performance approximate nearest neighbor search algorithms critical in applications such as image and recommender systems where speed and efficiency are paramount.

Good fit when

When you require a high-speed library written in Rust to implement an efficient similarity-search solution
For developing machine-learning projects that specifically need fast approximate nearest neighbor searches, leveraging the SIMD capabilities of modern hardware

Avoid when

If your project is restricted to languages other than Rust and you cannot work with Rust bindings or require a more general-purpose vector database library
When exact nearest neighbor search accuracy is preferred over the speed provided by approximate algorithms, as Hora specializes in sacrificing minimal precision for significant performance gains

Observed Jul 15, 2026 · Source: enrich:decision_facts

hora alternatives Trust report

Verify the decision

Maintenance and security

Full trust report

Maintenance: Slowing (214d since push); As of Sep 20, 2026
Provenance: Not a fork · Organization account; As of Sep 20, 2026
Security (OSV): No lockfile; As of Jul 11, 2026

Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.

Install

cargo add hora

crates.io

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Evidence and technical details

Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.

Overview

A high-performance Rust library for efficient approximate nearest neighbor search algorithms useful for similarity-search across various machine-learning applications.

Capability facts

Languages: rust
Source: github.language · Sep 20, 2026

Compatibility

Sourced claims from the README excerpt - not unsourced marketing copy.

Python runtimePython

Source: README excerpt (regex_v1, Sep 20, 2026)

**`Python`**

Source link

README

Installation in License The entire repository is licensed under the Apache License.

For agents

This page has a .md twin and JSON over the API.

/tools/hora-search-hora.md GET /api/graphcanon/tools/hora-search-hora GET /api/graphcanon/graph?tool=hora-search-hora