Comparison
carla vs voy
Verdict
Pick carla when carla is primarily C++; voy is Rust; pick voy when voy is primarily Rust; carla is C++.
Markdown twin · carla alternatives · voy alternatives
GraphCanon updated today
Trust & integrity
| Signal | carla | voy |
|---|---|---|
| Maintenance | Very active (1d since push) As of today · github_public_v1 | Dormant (1024d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | 6 low (6 low) As of today · osv@v1 | No lockfile As of today · none |
Tagline
- carla
- Open-source simulator for autonomous driving research.
- voy
- 🕸️🦀 A WASM vector similarity search written in Rust
Stars
- carla
- 14k
- voy
- 1.1k
Forks
- carla
- 4.6k
- voy
- 39
Open issues
- carla
- 1.2k
- voy
- 22
Language
- carla
- C++
- voy
- Rust
Adopt for
- carla
- -
- voy
- -
Persona
- carla
- -
- voy
- -
Runtime
- carla
- -
- voy
- -
License
- carla
- MIT
- voy
- Apache-2.0
Last pushed
- carla
- Jul 10, 2026
- voy
- Sep 20, 2023
Categories
- carla
- AI Agents, Vector Databases, Model Training
- voy
- Vector Databases
Trust and health
Maintenance
- carla
- Very active (96%)
- voy
- Dormant (18%)
Days since push
- carla
- 1d
- voy
- 1024d
Open issues (now)
- carla
- 1.2k
- voy
- 22
Security scan
- carla
- 6 low (6 low)
- voy
- No lockfile
Full report
- carla
- Trust report
- voy
- Trust report
Choose carla if…
- carla is primarily C++; voy is Rust.
- License: carla is MIT, voy is Apache-2.0.
- Tags unique to carla: ai, artificial-intelligence, carla-simulator, cross-platform.
- Also covers AI Agents, Model Training.
When NOT to use carla
- AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism.
- Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate.
- Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
Choose voy if…
- voy is primarily Rust; carla is C++.
- License: voy is Apache-2.0, carla is MIT.
- Tags unique to voy: webassembly, similarity-search, rust, k-d-tree.
When NOT to use voy
- Last GitHub push was 1025 days ago (dormant maintenance, Sep 20, 2023). Validate activity before betting a new project on voy.
- Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (carla-simulator/carla) · observed Jul 11, 2026
- GitHub forks (carla-simulator/carla) · observed Jul 11, 2026
- Last push (carla-simulator/carla) · observed Jul 10, 2026
- License file (MIT) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (tantaraio/voy) · observed Jul 11, 2026
- GitHub forks (tantaraio/voy) · observed Jul 11, 2026
- Last push (tantaraio/voy) · observed Sep 20, 2023
- License file (Apache-2.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: carla 14k · voy 1.1k (synced Jul 11, 2026).
Common questions
- What is the difference between carla and voy?
- carla: Open-source simulator for autonomous driving research.. voy: 🕸️🦀 A WASM vector similarity search written in Rust. See the comparison table for live GitHub stats and shared categories.
- When should I choose carla over voy?
- Choose carla over voy when carla is primarily C++; voy is Rust; License: carla is MIT, voy is Apache-2.0; Tags unique to carla: ai, artificial-intelligence, carla-simulator, cross-platform; Also covers AI Agents, Model Training.
- When should I choose voy over carla?
- Choose voy over carla when voy is primarily Rust; carla is C++; License: voy is Apache-2.0, carla is MIT; Tags unique to voy: webassembly, similarity-search, rust, k-d-tree.
- When should I avoid carla?
- AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
- When should I avoid voy?
- Last GitHub push was 1025 days ago (dormant maintenance, Sep 20, 2023). Validate activity before betting a new project on voy. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate.
- Is carla or voy more popular on GitHub?
- carla has more GitHub stars (14,161 vs 1,063). Stars measure visibility, not whether either tool fits your constraints.
- Are carla and voy open source?
- Yes - both are open-source projects on GitHub (carla: MIT, voy: Apache-2.0).
- Where can I find alternatives to carla or voy?
- GraphCanon lists graph-backed alternatives at carla alternatives and voy alternatives (carla 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, carla or voy?
- carla: 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 carla and voy?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: carla trust report; voy trust report.