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Comparison

arthas vs penzai

Verdict

Pick arthas when arthas is primarily Java; penzai is Python; pick penzai when penzai is primarily Python; arthas is Java.

Markdown twin · arthas alternatives · penzai alternatives

GraphCanon updated today

arthas logo

arthas

alibaba/arthas

★ 37kpushed Jul 1, 2026
vs
penzai logo

penzai

google-deepmind/penzai

★ 1.9kpushed Jun 22, 2025

Trust & integrity

Signalarthaspenzai
Maintenance
Active (10d since push)
As of today · github_public_v1
Dormant (384d 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)
No lockfile
As of today · none
No lockfile
As of today · none
arthas trust reportpenzai trust reportTrust methodology

Tagline

arthas
Alibaba Java Diagnostic Tool Arthas
penzai
A JAX research toolkit for building, editing, and visualizing neural networks.

Stars

arthas
37k
penzai
1.9k

Forks

arthas
7.6k
penzai
70

Open issues

arthas
485
penzai
17

Language

arthas
Java
penzai
Python

Adopt for

arthas
Arthas is a Java diagnostic tool from Alibaba designed to monitor and troubleshoot running Java applications using features such as tracing, classloader analysis, and JVM diagnostics.
penzai
-

Persona

arthas
-
penzai
-

Runtime

arthas
-
penzai
-

License

arthas
Apache-2.0
penzai
Apache-2.0

Last pushed

arthas
Jul 1, 2026
penzai
Jun 22, 2025

Categories

arthas
Developer Tools
penzai
Developer Tools

Trust and health

Maintenance

arthas
Active (82%)
penzai
Dormant (18%)

Days since push

arthas
10d
penzai
384d

Open issues (now)

arthas
485
penzai
17

Full report

arthas
Trust report
penzai
Trust report

Choose arthas if…

  • arthas is primarily Java; penzai is Python.
  • Requirements: Min 1 GB RAM.
  • Tags unique to arthas: agent, diagnosis, java, jvm.
  • arthas ships Docker support for self-hosted deployment.
  • Utilize Arthas for deep diagnostics on running Java applications where you need advanced features such as bytecode enhancement or specific trace capabilities over static analysis.

When NOT to use arthas

  • Avoid using Arthas if your primary need is for quick, surface-level diagnostics or performance tuning without diving into more advanced features.
  • Do not use Arthas if you are working in a development environment outside of Java where this specific diagnostic tool would provide no value.
GitHubDetails

Choose penzai if…

  • penzai is primarily Python; arthas is Java.
  • Tags unique to penzai: fine-tuning, interpretability, jax, neural-networks.
  • Leaner open-issue backlog (17).

When NOT to use penzai

  • Last GitHub push was 385 days ago (dormant maintenance, Jun 22, 2025). Validate activity before betting a new project on penzai.
  • Developer Tools: A gateway is overkill when you're pinned to a single provider and model.
GitHubDetails

Explore

arthas trust report →penzai trust report →Developer Tools category →All comparisonsStack workflowsTrending tools

Sources

Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.

GitHub stars on cards: arthas 37k · penzai 1.9k (synced Jul 11, 2026).

Common questions

What is the difference between arthas and penzai?
arthas: Alibaba Java Diagnostic Tool Arthas. penzai: A JAX research toolkit for building, editing, and visualizing neural networks.. See the comparison table for live GitHub stats and shared categories.
When should I choose arthas over penzai?
Choose arthas over penzai when arthas is primarily Java; penzai is Python; Requirements: Min 1 GB RAM; Tags unique to arthas: agent, diagnosis, java, jvm; arthas ships Docker support for self-hosted deployment; Utilize Arthas for deep diagnostics on running Java applications where you need advanced features such as bytecode enhancement or specific trace capabilities over static analysis.
When should I choose penzai over arthas?
Choose penzai over arthas when penzai is primarily Python; arthas is Java; Tags unique to penzai: fine-tuning, interpretability, jax, neural-networks; Leaner open-issue backlog (17).
When should I avoid arthas?
Avoid using Arthas if your primary need is for quick, surface-level diagnostics or performance tuning without diving into more advanced features. Do not use Arthas if you are working in a development environment outside of Java where this specific diagnostic tool would provide no value.
When should I avoid penzai?
Last GitHub push was 385 days ago (dormant maintenance, Jun 22, 2025). Validate activity before betting a new project on penzai. Developer Tools: A gateway is overkill when you're pinned to a single provider and model.
Is arthas or penzai more popular on GitHub?
arthas has more GitHub stars (37,427 vs 1,893). Stars measure visibility, not whether either tool fits your constraints.
Are arthas and penzai open source?
Yes - both are open-source projects on GitHub (arthas: Apache-2.0, penzai: Apache-2.0).
Where can I find alternatives to arthas or penzai?
GraphCanon lists graph-backed alternatives at arthas alternatives and penzai alternatives (arthas markdown twin, penzai 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, arthas or penzai?
arthas: Active. penzai: 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 arthas and penzai?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: arthas trust report; penzai trust report.