GraphCanon
Home/Compare/openllmetry vs trulens

Comparison

openllmetry vs trulens

Verdict

Pick openllmetry if openLLMetry is an open-source observability tool for GenAI and LLM applications, built on OpenTelemetry, offering Python SDK for easy integration; pick trulens if trulens aids in evaluating and monitoring Language Model experiments and AI agents, with integrations for various providers.

Markdown twin · openllmetry alternatives · trulens alternatives

GraphCanon updated Sep 20, 2026

10views this month

openllmetry logo

openllmetry

traceloop/openllmetry

★ 7.4kpushed Sep 17, 2026
vs
trulens logo

trulens

truera/trulens

★ 3.6kpushed Sep 18, 2026

Trust & integrity

Signalopenllmetrytrulens
Maintenance
Very active (0d since push)
As of Sep 18, 2026 · github_public_v1
Very active (1d 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
Published findings
As of Sep 18, 2026 · osv@v1
No published findings from this source as of 2026-07-11
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
openllmetry trust reporttrulens trust reportTrust methodology

Tagline

openllmetry
Open-source observability for GenAI or LLM applications based on OpenTelemetry
trulens
Evaluation and Tracking for LLM Experiments and AI Agents

Stars

openllmetry
7.4k
trulens
3.6k

Forks

openllmetry
1.1k
trulens
345

Open issues

openllmetry
679
trulens
71

Language

openllmetry
Python
trulens
Python

Adopt for

openllmetry
OpenLLMetry is an open-source observability tool for GenAI and LLM applications, built on OpenTelemetry, offering Python SDK for easy integration.
trulens
Trulens aids in evaluating and monitoring Language Model experiments and AI agents, with integrations for various providers.

Persona

openllmetry
-
trulens
-

Runtime

openllmetry
-
trulens
-

License

openllmetry
Apache-2.0
trulens
MIT

Last pushed

openllmetry
Sep 17, 2026
trulens
Sep 18, 2026

Categories

openllmetry
Evaluation & Observability
trulens
AI Agents, Evaluation & Observability

Trust and health

Days since push

openllmetry
0d
trulens
1d

Open issues (now)

openllmetry
679
trulens
71

Stars delta

openllmetry
+61 (30d)
trulens
+47 (30d)

Open issues delta

openllmetry
+41 (30d)
trulens
+6 (30d)

OSV dependency advisories

openllmetry
Published findings
trulens
No published findings from this source as of 2026-07-11

Full report

openllmetry
Trust report
trulens
Trust report

Typed relationship

openllmetry alternative trulensOpenLLMetry provides open-source observability for LLMs, similar to TruLens, which focuses on evaluation and tracking of performance across developmental iterations.

Shared compatibility

  • Python · openllmetry: Python runtime · trulens: Python runtime

Choose openllmetry if…

  • License: openllmetry is Apache-2.0, trulens is MIT.
  • OpenLLMetry provides open-source observability for LLMs, similar to TruLens, which focuses on evaluation and tracking of performance across developmental iterations.
  • Tags unique to openllmetry: artifical-intelligence, datascience, generative-ai, llm.
  • When you are working on GenAI or LLM applications and need observability features that are specifically tailored for these types of applications.

When NOT to use openllmetry

  • If your application is not in Python, as OpenLLMetry's primary support is for Python applications, limiting its utility for other languages.
  • When you need a tool that offers more than just observability features, as OpenLLMetry focuses specifically on monitoring and metrics for GenAI and LLM applications and may not cover other aspects of
GitHubDetails

Choose trulens if…

  • License: trulens is MIT, openllmetry is Apache-2.0.
  • OpenLLMetry provides open-source observability for LLMs, similar to TruLens, which focuses on evaluation and tracking of performance across developmental iterations.
  • Tags unique to trulens: agent-evaluation, ai-agents, ai-monitoring, evaluation-tool.
  • Also covers AI Agents.
  • Need to evaluate specific models from OpenAI, Google Gemini, AWS Bedrock, or HuggingFace.

When NOT to use trulens

  • Looking for a tool that solely focuses on training models rather than evaluation and monitoring.
  • Require support for less common model providers not listed in Trulens integrations.
GitHubDetails

Explore

openllmetry trust report →trulens trust report →Evaluation & Observability category →AI Agents 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: openllmetry 7.4k · trulens 3.6k (synced Sep 20, 2026).

Common questions

What is the difference between openllmetry and trulens?
openllmetry: Open-source observability for GenAI or LLM applications based on OpenTelemetry. trulens: Evaluation and Tracking for LLM Experiments and AI Agents. See the comparison table for live GitHub stats and shared categories.
When should I choose openllmetry over trulens?
Choose openllmetry over trulens when License: openllmetry is Apache-2.0, trulens is MIT; OpenLLMetry provides open-source observability for LLMs, similar to TruLens, which focuses on evaluation and tracking of performance across developmental iterations; Tags unique to openllmetry: artifical-intelligence, datascience, generative-ai, llm; When you are working on GenAI or LLM applications and need observability features that are specifically tailored for these types of applications.
When should I choose trulens over openllmetry?
Choose trulens over openllmetry when License: trulens is MIT, openllmetry is Apache-2.0; OpenLLMetry provides open-source observability for LLMs, similar to TruLens, which focuses on evaluation and tracking of performance across developmental iterations; Tags unique to trulens: agent-evaluation, ai-agents, ai-monitoring, evaluation-tool; Also covers AI Agents; Need to evaluate specific models from OpenAI, Google Gemini, AWS Bedrock, or HuggingFace.
When should I avoid openllmetry?
If your application is not in Python, as OpenLLMetry's primary support is for Python applications, limiting its utility for other languages. When you need a tool that offers more than just observability features, as OpenLLMetry focuses specifically on monitoring and metrics for GenAI and LLM applications and may not cover other aspects of
When should I avoid trulens?
Looking for a tool that solely focuses on training models rather than evaluation and monitoring. Require support for less common model providers not listed in Trulens integrations.
Is openllmetry or trulens more popular on GitHub?
openllmetry has more GitHub stars (7,438 vs 3,563). Stars measure visibility, not whether either tool fits your constraints.
Are openllmetry and trulens open source?
Yes - both are open-source projects on GitHub (openllmetry: Apache-2.0, trulens: MIT).
Where can I find alternatives to openllmetry or trulens?
GraphCanon lists graph-backed alternatives at openllmetry alternatives and trulens alternatives (openllmetry markdown twin, trulens 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, openllmetry or trulens?
openllmetry: Very active. trulens: Very active. 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 openllmetry and trulens?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: openllmetry trust report; trulens trust report.

Was this helpful?

Anonymous feedback helps us improve pages and translations.