Comparison
cuvs vs voy
Verdict
Pick cuvs if cuVS is a CUDA-based library for efficient GPU-accelerated vector search and clustering; pick voy if voy specializes in Webassembly-based vector similarity searches, coded in Rust, with support for k-d-trees and nearest-neighbor searching.
Markdown twin · cuvs alternatives · voy alternatives
GraphCanon updated 2d
Trust & integrity
| Signal | cuvs | voy |
|---|---|---|
| Maintenance | Very active (1d since push) As of 2d · github_public_v1 | Dormant (1067d since push) As of 2d · github_public_v1 |
| Provenance | Not a fork · Organization account As of 2d · github_public_v1 | Not a fork · Organization account As of 2d · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- cuvs
- A library for vector search and clustering on the GPU
- voy
- A WASM vector similarity search written in Rust
Stars
- cuvs
- 838
- voy
- 1.1k
Forks
- cuvs
- 223
- voy
- 41
Open issues
- cuvs
- 692
- voy
- 22
Language
- cuvs
- Cuda
- voy
- Rust
Adopt for
- cuvs
- cuVS is a CUDA-based library for efficient GPU-accelerated vector search and clustering.
- voy
- Voy specializes in Webassembly-based vector similarity searches, coded in Rust, with support for k-d-trees and nearest-neighbor searching.
Persona
- cuvs
- -
- voy
- -
Runtime
- cuvs
- -
- voy
- -
License
- cuvs
- Apache-2.0
- voy
- Apache-2.0
Last pushed
- cuvs
- Aug 22, 2026
- voy
- Sep 20, 2023
Categories
- cuvs
- Vector Databases
- voy
- Vector Databases
Trust and health
Maintenance
- cuvs
- Very active (96%)
- voy
- Dormant (18%)
Days since push
- cuvs
- 1d
- voy
- 1067d
Open issues (now)
- cuvs
- 692
- voy
- 22
Stars delta
- cuvs
- +17 (30d)
- voy
- +4 (30d)
Open issues delta
- cuvs
- +47 (30d)
- voy
- 0 (30d)
Full report
- cuvs
- Trust report
- voy
- Trust report
Choose cuvs if…
- cuvs is primarily Cuda; voy is Rust.
- Tags unique to cuvs: anns, clustering, cuda, gpu.
- cuvs ships Docker support for self-hosted deployment.
- - When you need high-performance vector operations leveraging the parallel processing power of GPUs, specifically with CUDA.
When NOT to use cuvs
- - For environments where GPU resources are limited or unavailable because cuVS heavily relies on CUDA's capabilities for performance gains.
- - When you prioritize portability across different hardware, as cuVS being tied to CUDA means it may not be optimal on non-NVIDIA GPUs or CPU-only systems.
Choose voy if…
- voy is primarily Rust; cuvs is Cuda.
- Tags unique to voy: k-d-tree, nearest-neighbor-search, rust, similarity-search.
- When you require a Rust implementation of WebAssembly for embedding in web applications or for secure sandboxed execution on the server-side.
When NOT to use voy
- If high availability and extensive fault tolerance features are required, as Voy focuses primarily on vector similarity searches rather than system-wide reliability enhancements.
- When your project demands integration with existing large-scale SQL database systems, since Voy is specialized for a specific type of search operation.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (NVIDIA/cuvs) · observed Aug 23, 2026
- GitHub forks (NVIDIA/cuvs) · observed Aug 23, 2026
- Last push (NVIDIA/cuvs) · observed Aug 22, 2026
- License file (Apache-2.0) · observed Aug 23, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (tantaraio/voy) · observed Aug 23, 2026
- GitHub forks (tantaraio/voy) · observed Aug 23, 2026
- Last push (tantaraio/voy) · observed Sep 20, 2023
- License file (Apache-2.0) · observed Aug 23, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: cuvs 838 · voy 1.1k (synced Aug 23, 2026).
Common questions
- What is the difference between cuvs and voy?
- cuvs: A library for vector search and clustering on the GPU. voy: A WASM vector similarity search written in Rust. See the comparison table for live GitHub stats and shared categories.
- When should I choose cuvs over voy?
- Choose cuvs over voy when cuvs is primarily Cuda; voy is Rust; Tags unique to cuvs: anns, clustering, cuda, gpu; cuvs ships Docker support for self-hosted deployment; - When you need high-performance vector operations leveraging the parallel processing power of GPUs, specifically with CUDA.
- When should I choose voy over cuvs?
- Choose voy over cuvs when voy is primarily Rust; cuvs is Cuda; Tags unique to voy: k-d-tree, nearest-neighbor-search, rust, similarity-search; When you require a Rust implementation of WebAssembly for embedding in web applications or for secure sandboxed execution on the server-side.
- When should I avoid cuvs?
- - For environments where GPU resources are limited or unavailable because cuVS heavily relies on CUDA's capabilities for performance gains. - When you prioritize portability across different hardware, as cuVS being tied to CUDA means it may not be optimal on non-NVIDIA GPUs or CPU-only systems.
- When should I avoid voy?
- If high availability and extensive fault tolerance features are required, as Voy focuses primarily on vector similarity searches rather than system-wide reliability enhancements. When your project demands integration with existing large-scale SQL database systems, since Voy is specialized for a specific type of search operation.
- Is cuvs or voy more popular on GitHub?
- voy has more GitHub stars (1,069 vs 838). Stars measure visibility, not whether either tool fits your constraints.
- Are cuvs and voy open source?
- Yes - both are open-source projects on GitHub (cuvs: Apache-2.0, voy: Apache-2.0).
- Where can I find alternatives to cuvs or voy?
- GraphCanon lists graph-backed alternatives at cuvs alternatives and voy alternatives (cuvs markdown twin, voy markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, cuvs or voy?
- cuvs: Very active. voy: Dormant. 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 cuvs and voy?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: cuvs trust report; voy trust report.