# OpenNMT/CTranslate2 — health index 71/100 (Good)

> Inspection of the public repository OpenNMT/CTranslate2 by inspect.software. It holds a health index of 71 out of 100, placing it in the Good band. The index is a signal derived from publicly visible practice, not a warranty, a security audit, or an endorsement, and it is independent of payment.

- Repository: https://github.com/OpenNMT/CTranslate2
- Report page: https://inspect.software/software/OpenNMT/CTranslate2
- Full JSON report: https://inspect.software/api/repositories/OpenNMT/CTranslate2/report
- Badge: https://raw.githubusercontent.com/inspect-software/badges/main/v1/o/OpenNMT/CTranslate2.svg
- Inspected: 2026-07-21
- Methodology: metrics 1.13.0, report schema 0.16.0 (https://inspect.software/methodology.md)

## Category summary

| Category | Weight | Index | Band |
|---|---|---|---|
| Vitality | 22% | 76/100 | Good |
| Community & Adoption | 18% | 86/100 | Excellent |
| Sustainability & Governance | 24% | 67/100 | Moderate |
| Engineering Quality | 20% | 72/100 | Good |
| Security | 16% | 52/100 | Moderate |
| AI Readiness | not counted | 45/100 | At risk |

## Repository facts

| Field | Value |
|---|---|
| Description | Fast inference engine for Transformer models |
| Homepage | https://opennmt.net/CTranslate2 |
| Primary language | C++ |
| License | MIT |
| Stars | 4,577 |
| Forks | 502 |
| Created | 2019-09-23 |
| Last push | 2026-07-03 |
| Latest release | v4.8.1 |
| Commits (last year) | 72 |
| Bus factor | 1 |
| Topics | neural-machine-translation, cpp, mkl, quantization, cuda, thrust, opennmt, deep-neural-networks, openmp, onednn, intrinsics, avx2, avx, parallel-computing, gemm, neon, transformer-models, machine-translation, deep-learning, inference |

## Published packages

| Registry | Package | Latest | Monthly downloads |
|---|---|---|---|
| pypi | ctranslate2 | 4.8.1 | 9,437,882 |

## Vitality — 76/100 (Good)

Is the project alive — is code being written and are releases shipping? Weight: 22% of the overall index.

### Development activity — 65/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Push recency | partial | 28.8 / 36 | last push 17 days ago |
| Commit cadence | partial | 13.2 / 36 | 19/52 weeks with commits |
| Commit volume | partial | 16.7 / 18 | 72 commits in the last year |
| OpenSSF Scorecard: Maintained | excluded | 0 / 10 | OpenSSF Scorecard unavailable |

### Release discipline — 92/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Ships releases | met | 27 / 27 | 100 releases published |
| Release recency | met | 36 / 36 | latest release 17 days ago |
| Release cadence | partial | 19.8 / 27 | a release every ~68.8 days |
| OpenSSF Scorecard: Signed-Releases | excluded | 0 / 10 | OpenSSF Scorecard unavailable |

### Abandonment — 100/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Project is still maintained | met | 100 / 100 | maintenance record not established from the collected data |

## Community & Adoption — 86/100 (Excellent)

Does the project have users, downloads, attention, and a welcoming setup for contributors? Weight: 18% of the overall index.

### Popularity & adoption — 91/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Stars | partial | 59.4 / 60 | 4,577 stars |
| Forks | partial | 22.5 / 25 | 502 forks |
| Watchers | partial | 9.5 / 15 | 52 watchers |

### Community health — 70/100 (Good)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| README | met | 22.5 / 22.5 | — |
| License | met | 22.5 / 22.5 | recognized license (MIT) |
| CONTRIBUTING guide | met | 18 / 18 | — |
| Code of conduct | not met | 0 / 13.5 | — |
| Issue template | not met | 0 / 7.2 | — |
| PR template | not met | 0 / 6.3 | — |

### Ecosystem adoption (downloads) — 100/100 (Excellent)

Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Monthly downloads | met | 80 / 80 | 9,437,882 downloads/month across pypi |
| Registry dependents | excluded | 0 / 20 | not reported by this ecosystem |

## Sustainability & Governance — 67/100 (Moderate)

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep? Weight: 24% of the overall index.

### Maintainer resilience (bus factor) — 27/100 (Critical)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Bus factor | partial | 9 / 54 | 1 contributor(s) cover half of all commits |
| Commit distribution | partial | 2.2 / 22.5 | top contributor authored 90% of commits |
| Contributor breadth | met | 13.5 / 13.5 | 64 contributors |
| OpenSSF Scorecard: Contributors | excluded | 0 / 10 | OpenSSF Scorecard unavailable |

### Issue & PR responsiveness — 83/100 (Good)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Issue resolution | partial | 34.2 / 46.8 | 73% of issues closed |
| PR acceptance | partial | 36 / 38.2 | 1127/1199 decided PRs merged |
| OpenSSF Scorecard: Code-Review | excluded | 0 / 15 | OpenSSF Scorecard unavailable |

### Ownership & stewardship — 72/100 (Good)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Ownership backing | met | 30 / 30 | organization-owned |
| Verified domain | not met | 0 / 20 | — |
| Owner reach | partial | 19.2 / 25 | 464 followers of OpenNMT |
| Track record | partial | 22.3 / 25 | 25 public repos, account ~9 yr old |

### Package maintenance — 100/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Published & resolvable | met | 25 / 25 | 1 package(s) on pypi |
| Publish recency | met | 35 / 35 | latest publish 17 days ago |
| Version history | met | 20 / 20 | 61 published versions |
| Not deprecated | met | 20 / 20 | active, not deprecated or yanked |

## Engineering Quality — 72/100 (Good)

Are baseline engineering and documentation practices in place? Weight: 20% of the overall index.

### Engineering practices — 60/100 (Moderate)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| CI workflows | met | 24 / 24 | 1 workflow(s) |
| Tests present | met | 24 / 24 | — |
| Linter config | not met | 0 / 16 | — |
| Pre-commit hooks | not met | 0 / 9.6 | — |
| .editorconfig | not met | 0 / 6.4 | — |
| OpenSSF Scorecard: CI-Tests | excluded | 0 / 20 | OpenSSF Scorecard unavailable |

### Documentation — 90/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| README | met | 30 / 30 | — |
| Documentation directory | met | 25 / 25 | — |
| Documentation / homepage site | met | 15 / 15 | https://opennmt.net/CTranslate2 |
| Repository description | met | 10 / 10 | — |
| Topics | met | 10 / 10 | 20 topics |
| Wiki | not met | 0 / 10 | — |

## Security — 52/100 (Moderate)

Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure? Weight: 16% of the overall index.

### Security posture — 40/100 (At risk)

Excluded from scoring (no data or not applicable): Dependency lockfiles. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Security policy (SECURITY.md) | met | 30 / 30 | — |
| Dependabot config | not met | 0 / 25 | — |
| Dependency lockfiles | excluded | 0 / 25 | published library — lockfiles are an application concern, not expected |
| CodeQL workflow | not met | 0 / 20 | — |

### Dependency advisories — 100/100 (Excellent)

Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the pypi:ctranslate2@4.8.1 runtime dependency closure — what installing the published package pulls in — 3 packages. Reachability is not analyzed.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Direct dependencies free of known advisories | met | 35 / 35 | no direct dependency carries a known advisory |
| Indirect dependencies free of known advisories | met | 25 / 25 | no indirect dependency carries a known advisory |
| No advisories left outstanding | excluded | 0 / 40 | no advisory carries a publication date |

### Malicious dependencies — 100/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| No dependency reported as a malicious package | met | 100 / 100 | no dependency is reported as a malicious package |

### High-Risk Jurisdiction Exposure — 100/100 (Excellent)

Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Policy exposure multiplier | met | 100 / 100 | no confirmed policy-scope location match |

## AI Readiness — 45/100 (At risk)

How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score.

### Agent context & guidance — 1/100 (Critical)

Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Agent instructions | not met | 0 / 45 | no CLAUDE.md / AGENTS.md / editor rules |
| Machine-readable docs (llms.txt) | not met | 0 / 15 | — |
| Legible commit history | excluded | 0 / 40 | no data |

### Verify loop (build / test / typecheck) — 60/100 (Moderate)

Excluded from scoring (no data or not applicable): Demonstrated agent practice, Automated maintenance. Remaining weights renormalized.

| Criterion | Status | Points | Detail |
|---|---|---|---|
| One-command bootstrap | not met | 0 / 18 | — |
| Automated tests | met | 22 / 22 | — |
| Lint / format config | not met | 0 / 11 | — |
| Static type checking | met | 11 / 11 | C++ (statically typed) |
| Reproducible environment | met | 10 / 10 | Dockerfile |
| Demonstrated agent practice | excluded | 0 / 10 | no data |
| Automated maintenance | excluded | 0 / 8 | no data |
| OpenSSF Scorecard: Pinned-Dependencies | excluded | 0 / 10 | OpenSSF Scorecard unavailable |

### Code legibility for models — 99/100 (Excellent)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| Type-checkable code | met | 45 / 45 | C++ (statically typed) |
| Manageable file sizes | partial | 54.3 / 55 | 4/323 source files over 60KB |

### Machine-readable interfaces — 40/100 (At risk)

| Criterion | Status | Points | Detail |
|---|---|---|---|
| API schema (OpenAPI/GraphQL/proto) | not met | 0 / 40 | — |
| MCP server | not met | 0 / 20 | — |
| Runnable examples | met | 40 / 40 | examples |

## Collection warnings

- OpenSSF Scorecard did not return a usable result (exit code -9); skipping Scorecard checks

## What this report is

inspect.software measures public repositories against a single published, versioned methodology and reports the result as a 1–100 health index. Findings are signals derived from what is visible in public repository data — they are not a security audit, a warranty, or an endorsement, and no result depends on payment.

- Methodology, formulas and weights: https://inspect.software/methodology.md
- What a result does and does not claim: https://inspect.software/wiki/signals-not-warranties.md
- Rating bands: https://inspect.software/wiki/scoring-bands.md
- Corrections: https://inspect.software/contact.md
- Index of all documents: https://inspect.software/llms.txt