--- title: "hora vs vald" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/hora-search-hora-vs-vdaas-vald" tools: ["hora-search-hora", "vdaas-vald"] --- # hora vs vald *GraphCanon updated Aug 23, 2026* ## Verdict Pick hora if 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; pick vald if vald is written in Go, licensed under Apache-2.0, for highly scalable vector search tasks on Kubernetes. [hora](http://horasearch.com/) reports 2.7k GitHub stars, 77 forks, and 26 open issues, last pushed Feb 17, 2026. [vald](https://vald.vdaas.org) has 1.7k stars, 95 forks, and 146 open issues, last pushed Aug 2, 2026. Figures are from public GitHub metadata via [hora's repository](https://github.com/hora-search/hora) and [vald's repository](https://github.com/vdaas/vald). | | [hora](/tools/hora-search-hora.md) | [vald](/tools/vdaas-vald.md) | | --- | --- | --- | | Tagline | efficient approximate nearest neighbor search algorithm collections library written in Rust | A Highly Scalable Distributed Vector Search Engine | | Stars | 2,659 | 1,714 | | Forks | 77 | 95 | | Open issues | 26 | 146 | | Language | Rust | Go | | Adopt for | 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. | Vald is written in Go, licensed under Apache-2.0, for highly scalable vector search tasks on Kubernetes. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Apache-2.0 | | Categories | Data & Retrieval, Vector Databases | Data & Retrieval, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [hora](/tools/hora-search-hora.md) | [vald](/tools/vdaas-vald.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Very active (96%) | | Days since push | 186d | 0d | | Open issues (now) | 26 | 146 | | Stars delta | -4 (30d) | Unknown | | Open issues delta | 0 (30d) | Unknown | | Full report | [trust report](/tools/hora-search-hora/trust.md) | [trust report](/tools/vdaas-vald/trust.md) | ## Decision facts: hora - **Adopt for:** 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. ## Decision facts: vald - **Adopt for:** Vald is written in Go, licensed under Apache-2.0, for highly scalable vector search tasks on Kubernetes. ## Choose when ### Choose hora if… - hora is primarily Rust; vald is Go. - Tags unique to hora: algorithm, artificial-intelligence, data-structures, high-performance. - When you require a high-speed library written in Rust to implement an efficient similarity-search solution ### Choose vald if… - vald is primarily Go; hora is Rust. - Tags unique to vald: anng, cloud-native, distributed-systems, high-dimensional-data. - Requires high-performance searches in a distributed system ## When NOT to use hora - 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 ## When NOT to use vald - Need lower scalability vector search solutions - Cannot use Kubernetes 1.19 or above - Do not have AVX2 support in the system environment ## Common questions ### What is the difference between hora and vald? hora: efficient approximate nearest neighbor search algorithm collections library written in Rust. vald: A Highly Scalable Distributed Vector Search Engine. See the comparison table for live GitHub stats and shared categories. ### When should I choose hora over vald? Choose hora over vald when hora is primarily Rust; vald is Go; Tags unique to hora: algorithm, artificial-intelligence, data-structures, high-performance; When you require a high-speed library written in Rust to implement an efficient similarity-search solution. ### When should I choose vald over hora? Choose vald over hora when vald is primarily Go; hora is Rust; Tags unique to vald: anng, cloud-native, distributed-systems, high-dimensional-data; Requires high-performance searches in a distributed system. ### When should I avoid hora? 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 ### When should I avoid vald? Need lower scalability vector search solutions Cannot use Kubernetes 1.19 or above Do not have AVX2 support in the system environment ### Is hora or vald more popular on GitHub? hora has more GitHub stars (2,659 vs 1,714). Stars measure visibility, not whether either tool fits your constraints. ### Are hora and vald open source? Yes - both are open-source projects on GitHub (hora: Apache-2.0, vald: Apache-2.0). ### Where can I find alternatives to hora or vald? GraphCanon lists graph-backed alternatives at [hora alternatives](/tools/hora-search-hora/alternatives) and [vald alternatives](/tools/vdaas-vald/alternatives) ([hora markdown twin](/tools/hora-search-hora/alternatives.md), [vald markdown twin](/tools/vdaas-vald/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/hora-search-hora-vs-vdaas-vald.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, hora or vald? hora: Slowing. vald: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for hora and vald? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [hora trust report](/tools/hora-search-hora/trust); [vald trust report](/tools/vdaas-vald/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=hora-search-hora`](/api/graphcanon/graph?tool=hora-search-hora) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_