Comparison
caer vs zpy
Verdict
Pick caer if caer is noted for its high-performance vision tasks including image and video processing, with GPU support via CUDA; pick zpy if developed by ZumoLabs, zpy is an open-source Python-based toolkit designed for generating synthetic data specifically for computer vision projects utilizing Blender as the primary rendering engine.
Markdown twin · caer alternatives · zpy alternatives
GraphCanon updated Sep 25, 2026
12views this month
Trust & integrity
| Signal | caer | zpy |
|---|---|---|
| Maintenance | Active (29d since push) As of Sep 23, 2026 · github_public_v1 | Dormant (1755d since push) As of Sep 25, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 23, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 25, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | Published findings As of Jul 11, 2026 · 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
- caer
- High-performance Vision library in Python for scaling research
- zpy
- Synthetic data generation toolkit for computer vision with Blender support
Stars
- caer
- 817
- zpy
- 322
Forks
- caer
- 110
- zpy
- 34
Open issues
- caer
- 3
- zpy
- 4
Language
- caer
- Python
- zpy
- Python
Adopt for
- caer
- Caer is noted for its high-performance vision tasks including image and video processing, with GPU support via CUDA.
- zpy
- Developed by ZumoLabs, zpy is an open-source Python-based toolkit designed for generating synthetic data specifically for computer vision projects utilizing Blender as the primary rendering engine.
Persona
- caer
- -
- zpy
- -
Runtime
- caer
- -
- zpy
- -
License
- caer
- MIT
- zpy
- GPLv3, which allows you to use zpy freely but mandates that any derivative works be shared under the same license terms.
Last pushed
- caer
- Aug 24, 2026
- zpy
- Dec 4, 2021
Categories
- caer
- Computer Vision
- zpy
- Computer Vision
Trust and health
Maintenance
- caer
- Active (82%)
- zpy
- Dormant (18%)
Days since push
- caer
- 29d
- zpy
- 1755d
Open issues (now)
- caer
- 3
- zpy
- 4
Stars delta
- caer
- +5 (30d)
- zpy
- 0 (30d)
Open issues delta
- caer
- +2 (30d)
- zpy
- 0 (30d)
Owner type
- caer
- User
- zpy
- Organization
OSV dependency advisories
- caer
- No lockfile (source not queried)
- zpy
- Published findings
Full report
- caer
- Trust report
- zpy
- Trust report
Shared compatibility
- Python · caer: Python runtime · zpy: Python runtime
Choose caer if…
- License: caer is MIT, zpy is GPL-3.0.
- Tags unique to caer: artificial-intelligence, augmentation, cuda, data-science.
- If you are working on projects that require scaling computer vision research efforts without excessive boilerplate code, Caer offers streamlined solutions.
When NOT to use caer
- Avoid using caer if you are restricted to Python versions lower than 3.6, or when adherence to a specific older Python version is critical to your project.
- If compatibility with only open-source libraries is needed and CUDA support is not required, other more limited scope tools might be a better choice.
Choose zpy if…
- License: zpy is GPL-3.0, caer is MIT.
- Tags unique to zpy: blender, ml, synthetic-data.
- You need to create diverse and complex synthetic datasets using Blender's powerful rendering capabilities that are tailored for advanced computer vision applications.
When NOT to use zpy
- You require cross-platform compatibility with full feature support on Windows since development is currently lagging for this OS.
- Your focus lies solely on real-world data collection and your projects do not necessitate the simulation of environments or objects through synthetic means.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (jasmcaus/caer) · observed Sep 23, 2026
- GitHub forks (jasmcaus/caer) · observed Sep 23, 2026
- Last push (jasmcaus/caer) · observed Aug 24, 2026
- License file (MIT) · observed Sep 23, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (ZumoLabs/zpy) · observed Sep 25, 2026
- GitHub forks (ZumoLabs/zpy) · observed Sep 25, 2026
- Last push (ZumoLabs/zpy) · observed Dec 4, 2021
- License file (GPL-3.0) · observed Sep 25, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: caer 817 · zpy 322 (synced Sep 23, 2026).
Common questions
- What is the difference between caer and zpy?
- caer: High-performance Vision library in Python for scaling research. zpy: Synthetic data generation toolkit for computer vision with Blender support. See the comparison table for live GitHub stats and shared categories.
- When should I choose caer over zpy?
- Choose caer over zpy when License: caer is MIT, zpy is GPL-3.0; Tags unique to caer: artificial-intelligence, augmentation, cuda, data-science; If you are working on projects that require scaling computer vision research efforts without excessive boilerplate code, Caer offers streamlined solutions.
- When should I choose zpy over caer?
- Choose zpy over caer when License: zpy is GPL-3.0, caer is MIT; Tags unique to zpy: blender, ml, synthetic-data; You need to create diverse and complex synthetic datasets using Blender's powerful rendering capabilities that are tailored for advanced computer vision applications.
- When should I avoid caer?
- Avoid using caer if you are restricted to Python versions lower than 3.6, or when adherence to a specific older Python version is critical to your project. If compatibility with only open-source libraries is needed and CUDA support is not required, other more limited scope tools might be a better choice.
- When should I avoid zpy?
- You require cross-platform compatibility with full feature support on Windows since development is currently lagging for this OS. Your focus lies solely on real-world data collection and your projects do not necessitate the simulation of environments or objects through synthetic means.
- Is caer or zpy more popular on GitHub?
- caer has more GitHub stars (817 vs 322). Stars measure visibility, not whether either tool fits your constraints.
- Are caer and zpy open source?
- Yes - both are open-source projects on GitHub (caer: MIT, zpy: GPL-3.0).
- Where can I find alternatives to caer or zpy?
- GraphCanon lists graph-backed alternatives at caer alternatives and zpy alternatives (caer markdown twin, zpy 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, caer or zpy?
- caer: Active. zpy: 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 caer and zpy?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: caer trust report; zpy trust report.