Home/Compare/opik vs trulens

Comparison

opik vs trulens

Verdict

Pick opik if opik is designed for evaluating and monitoring LLM applications, offering comprehensive tracing and dashboards; pick trulens if trulens aids in evaluating and monitoring Language Model experiments and AI agents, with integrations for various providers.

Markdown twin · opik alternatives · trulens alternatives

GraphCanon updated 1d

opik logo

opik

comet-ml/opik

21kpushed Aug 7, 2026
vs
trulens logo

trulens

truera/trulens

3.5kpushed Aug 20, 2026

Trust & integrity

Signalopiktrulens
Maintenance
Very active (0d since push)
As of 2w · github_public_v1
Very active (0d since push)
As of 1d · github_public_v1
Provenance
Not a fork · Organization account
As of 2w · github_public_v1
Not a fork · Organization account
As of 1d · github_public_v1
OSV dependency advisories
No lockfile (source not queried)
As of 1mo · osv@v1
No published findings from this source as of 2026-07-11
As of 1mo · 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

opik
Debug, evaluate, and monitor your LLM applications with comprehensive tracing and production-ready dashboards
trulens
Evaluation and Tracking for LLM Experiments and AI Agents

Stars

opik
21k
trulens
3.5k

Forks

opik
1.7k
trulens
327

Open issues

opik
172
trulens
65

Language

opik
Python
trulens
Python

Adopt for

opik
Opik is designed for evaluating and monitoring LLM applications, offering comprehensive tracing and dashboards.
trulens
Trulens aids in evaluating and monitoring Language Model experiments and AI agents, with integrations for various providers.

Persona

opik
-
trulens
-

Runtime

opik
-
trulens
-

License

opik
Apache-2.0
trulens
MIT

Last pushed

opik
Aug 7, 2026
trulens
Aug 20, 2026

Categories

opik
Evaluation & Observability
trulens
AI Agents, Evaluation & Observability

Trust and health

Open issues (now)

opik
172
trulens
65

Stars delta

opik
+767 (30d)
trulens
+68 (30d)

Open issues delta

opik
+23 (30d)
trulens
-32 (30d)

OSV dependency advisories

opik
No lockfile (source not queried)
trulens
No published findings from this source as of 2026-07-11

Full report

Typed relationship

opik alternative trulensBoth 'opik' and 'trulens' offer observability and evaluation features for AI applications, particularly focusing on LLMs. While 'opik' emphasizes open-source tools for tracing, evaluating, and optimizing generative AI applications from simple chatbots to complex agentic systems, 'trulens' is specialized in systematic evaluation and tracking of LLM experiments with a focus on identifying failure-mr

Shared compatibility

  • Python · opik: Python runtime · trulens: Python runtime

Choose opik if…

  • License: opik is Apache-2.0, trulens is MIT.
  • Pricing: Opik is available under the Apache-2.0 license and can be deployed freely using Docker or Kubernetes, with no explicit mention of premium cloud-based services..
  • Requirements: Compatible with Python environments.; Can be deployed via Docker for local use or Kubernetes for scalable installations..
  • Both 'opik' and 'trulens' offer observability and evaluation features for AI applications, particularly focusing on LLMs. While 'opik' emphasizes open-source tools for tracing, evaluating, and optimizing generative AI applications from simple chatbots to complex agentic systems, 'trulens' is specialized in systematic evaluation and tracking of LLM experiments with a focus on identifying failure-mr
  • Tags unique to opik: evaluation, llm-evaluation, llm-observability.
  • - Use Opik when you need to deploy a self-hosted solution that offers granular control over your LLM monitoring setup.

When NOT to use opik

  • - Avoid using Opik if you prefer cloud-based deployment options where extensive self-hosting management may be less preferable or feasible.
  • - Do not use Opik if your project does not involve LLM applications or RAG systems, as its specific features will offer little benefit in a narrower context.

Choose trulens if…

  • License: trulens is MIT, opik is Apache-2.0.
  • Both 'opik' and 'trulens' offer observability and evaluation features for AI applications, particularly focusing on LLMs. While 'opik' emphasizes open-source tools for tracing, evaluating, and optimizing generative AI applications from simple chatbots to complex agentic systems, 'trulens' is specialized in systematic evaluation and tracking of LLM experiments with a focus on identifying failure-mr
  • 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.

Explore

Sources

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

GitHub stars on cards: opik 21k · trulens 3.5k (synced Aug 7, 2026).

Common questions

What is the difference between opik and trulens?
opik: Debug, evaluate, and monitor your LLM applications with comprehensive tracing and production-ready dashboards. 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 opik over trulens?
Choose opik over trulens when License: opik is Apache-2.0, trulens is MIT; Pricing: Opik is available under the Apache-2.0 license and can be deployed freely using Docker or Kubernetes, with no explicit mention of premium cloud-based services.; Requirements: Compatible with Python environments.; Can be deployed via Docker for local use or Kubernetes for scalable installations.; Both 'opik' and 'trulens' offer observability and evaluation features for AI applications, particularly focusing on LLMs. While 'opik' emphasizes open-source tools for tracing, evaluating, and optimizing generative AI applications from simple chatbots to complex agentic systems, 'trulens' is specialized in systematic evaluation and tracking of LLM experiments with a focus on identifying failure-mr; Tags unique to opik: evaluation, llm-evaluation, llm-observability; - Use Opik when you need to deploy a self-hosted solution that offers granular control over your LLM monitoring setup.
When should I choose trulens over opik?
Choose trulens over opik when License: trulens is MIT, opik is Apache-2.0; Both 'opik' and 'trulens' offer observability and evaluation features for AI applications, particularly focusing on LLMs. While 'opik' emphasizes open-source tools for tracing, evaluating, and optimizing generative AI applications from simple chatbots to complex agentic systems, 'trulens' is specialized in systematic evaluation and tracking of LLM experiments with a focus on identifying failure-mr; 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 opik?
- Avoid using Opik if you prefer cloud-based deployment options where extensive self-hosting management may be less preferable or feasible. - Do not use Opik if your project does not involve LLM applications or RAG systems, as its specific features will offer little benefit in a narrower context.
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 opik or trulens more popular on GitHub?
opik has more GitHub stars (21,177 vs 3,516). Stars measure visibility, not whether either tool fits your constraints.
Are opik and trulens open source?
Yes - both are open-source projects on GitHub (opik: Apache-2.0, trulens: MIT).
Where can I find alternatives to opik or trulens?
GraphCanon lists graph-backed alternatives at opik alternatives and trulens alternatives (opik 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, opik or trulens?
opik: 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 opik and trulens?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: opik trust report; trulens trust report.

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