GraphCanon
Home/Compare/langfuse vs langtrace

Comparison

langfuse vs langtrace

Verdict

Pick langfuse if langfuse is an open-source platform for evaluating and monitoring large language model applications, offering self-hosting options for local, VM, and Kubernetes environments; pick langtrace if langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework.

Markdown twin · langfuse alternatives · langtrace alternatives

GraphCanon updated Sep 20, 2026

18views this month

langfuse logo

langfuse

langfuse/langfuse

★ 35kpushed Sep 18, 2026
vs
langtrace logo

langtrace

Scale3-Labs/langtrace

★ 1.2kpushed Nov 17, 2025

Trust & integrity

Signallangfuselangtrace
Maintenance
Very active (0d since push)
As of Sep 18, 2026 · github_public_v1
Slowing (306d since push)
As of Sep 20, 2026 · github_public_v1
Provenance
Not a fork · Organization account
As of Sep 18, 2026 · github_public_v1
Not a fork · Organization account
As of Sep 20, 2026 · github_public_v1
OSV dependency advisories
No lockfile (source not queried)
As of Sep 18, 2026 · osv@v1
No lockfile (source not queried)
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
langfuse trust reportlangtrace trust reportTrust methodology

Tagline

langfuse
Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
langtrace
Open Telemetry based observability tool for LLM applications

Stars

langfuse
35k
langtrace
1.2k

Forks

langfuse
3.8k
langtrace
127

Open issues

langfuse
906
langtrace
2

Language

langfuse
TypeScript
langtrace
TypeScript

Adopt for

langfuse
Langfuse is an open-source platform for evaluating and monitoring large language model applications, offering self-hosting options for local, VM, and Kubernetes environments.
langtrace
Langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework.

Persona

langfuse
-
langtrace
-

Runtime

langfuse
-
langtrace
-

License

langfuse
Other
langtrace
AGPL-3.0

Last pushed

langfuse
Sep 18, 2026
langtrace
Nov 17, 2025

Categories

langfuse
Evaluation & Observability
langtrace
Evaluation & Observability

Trust and health

Maintenance

langfuse
Very active (96%)
langtrace
Slowing (36%)

Days since push

langfuse
0d
langtrace
306d

Open issues (now)

langfuse
906
langtrace
2

Stars delta

langfuse
+2.5k (30d)
langtrace
+4 (30d)

Open issues delta

langfuse
+197 (30d)
langtrace
+1 (30d)

Full report

langfuse
Trust report
langtrace
Trust report

Typed relationship

langfuse related langtrace

Choose langfuse if…

  • License: langfuse is Other, langtrace is AGPL-3.0.
  • Graph edge: langfuse is a typed related of langtrace - see the relationship row above.
  • Tags unique to langfuse: analytics, evaluation, llm-observability, monitoring.
  • When you need a self-hosted solution for evaluating and monitoring large language model applications, as Langfuse supports local, VM, and Kubernetes environments.

When NOT to use langfuse

  • If you are looking for a fully managed service without the need for self-hosting, as Langfuse requires setting up and maintaining the infrastructure yourself.
  • When you need enterprise features that are not covered by the open-source version, as the `ee` folders are not open-source and may require additional licensing or services.
GitHubDetails

Choose langtrace if…

  • License: langtrace is AGPL-3.0, langfuse is Other.
  • Graph edge: langtrace is a typed related of langfuse - see the relationship row above.
  • Tags unique to langtrace: ai, datasets, evaluations, gpt.
  • When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial.

When NOT to use langtrace

  • For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead.
  • When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value.
GitHubDetails

Explore

langfuse trust report →langtrace trust report →Evaluation & Observability 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: langfuse 35k · langtrace 1.2k (synced Sep 20, 2026).

Common questions

What is the difference between langfuse and langtrace?
langfuse: Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.. langtrace: Open Telemetry based observability tool for LLM applications. See the comparison table for live GitHub stats and shared categories.
When should I choose langfuse over langtrace?
Choose langfuse over langtrace when License: langfuse is Other, langtrace is AGPL-3.0; Graph edge: langfuse is a typed related of langtrace - see the relationship row above; Tags unique to langfuse: analytics, evaluation, llm-observability, monitoring; When you need a self-hosted solution for evaluating and monitoring large language model applications, as Langfuse supports local, VM, and Kubernetes environments.
When should I choose langtrace over langfuse?
Choose langtrace over langfuse when License: langtrace is AGPL-3.0, langfuse is Other; Graph edge: langtrace is a typed related of langfuse - see the relationship row above; Tags unique to langtrace: ai, datasets, evaluations, gpt; When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial.
When should I avoid langfuse?
If you are looking for a fully managed service without the need for self-hosting, as Langfuse requires setting up and maintaining the infrastructure yourself. When you need enterprise features that are not covered by the open-source version, as the ee folders are not open-source and may require additional licensing or services.
When should I avoid langtrace?
For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead. When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value.
Is langfuse or langtrace more popular on GitHub?
langfuse has more GitHub stars (34,763 vs 1,232). Stars measure visibility, not whether either tool fits your constraints.
Are langfuse and langtrace open source?
Yes - both are open-source projects on GitHub (langfuse: Other, langtrace: AGPL-3.0).
Where can I find alternatives to langfuse or langtrace?
GraphCanon lists graph-backed alternatives at langfuse alternatives and langtrace alternatives (langfuse markdown twin, langtrace 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, langfuse or langtrace?
langfuse: Very active. langtrace: Slowing. 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 langfuse and langtrace?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: langfuse trust report; langtrace trust report.

Was this helpful?

Anonymous feedback helps us improve pages and translations.