Comparison
phoenix vs opik
Verdict
Pick phoenix if phoenix by Arize AI focuses on providing comprehensive tools for monitoring and evaluating AI models with an emphasis on improving observability over time; pick opik if opik is designed for evaluating and monitoring LLM applications, offering comprehensive tracing and dashboards.
Markdown twin · phoenix alternatives · opik alternatives
GraphCanon updated 2w
Trust & integrity
| Signal | phoenix | opik |
|---|---|---|
| Maintenance | Very active (0d since push) As of 2w · github_public_v1 | Very active (0d since push) As of 2w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 2w · github_public_v1 | Not a fork · Organization account As of 2w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) 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
- phoenix
- AI Observability & Evaluation
- opik
- Debug, evaluate, and monitor your LLM applications with comprehensive tracing and production-ready dashboards
Stars
- phoenix
- 11k
- opik
- 21k
Forks
- phoenix
- 1.0k
- opik
- 1.7k
Open issues
- phoenix
- 839
- opik
- 172
Language
- phoenix
- Python
- opik
- Python
Adopt for
- phoenix
- Phoenix by Arize AI focuses on providing comprehensive tools for monitoring and evaluating AI models with an emphasis on improving observability over time.
- opik
- Opik is designed for evaluating and monitoring LLM applications, offering comprehensive tracing and dashboards.
Persona
- phoenix
- -
- opik
- -
Runtime
- phoenix
- -
- opik
- -
License
- phoenix
- Other
- opik
- Apache-2.0
Last pushed
- phoenix
- Aug 1, 2026
- opik
- Aug 7, 2026
Categories
- phoenix
- Evaluation & Observability
- opik
- Evaluation & Observability
Trust and health
Open issues (now)
- phoenix
- 839
- opik
- 172
Stars delta
- phoenix
- Unknown
- opik
- +767 (30d)
Open issues delta
- phoenix
- Unknown
- opik
- +23 (30d)
Full report
- phoenix
- Trust report
- opik
- Trust report
Typed relationship
phoenix opik
Choose phoenix if…
- License: phoenix is Other, opik is Apache-2.0.
- Pricing: Pricing details or information about different pricing tiers is not provided in the repository content..
- Requirements: Min -1 GB RAM; Requires Docker.
- Graph edge: phoenix is a typed related of opik - see the relationship row above.
- Tags unique to phoenix: agents, ai-monitoring, ai-observability, aiengineering.
- phoenix ships Docker support for self-hosted deployment.
- When your team requires a tool that offers advanced observability features specifically designed to track the performance of AI models overtime.
When NOT to use phoenix
- Consider another solution if your primary requirement is focused on generic monitoring tools that do not provide deep-dive observability features for AI models specifically.
- If you are constrained by the Elastic License 2.0 terms, which might not align with your organization's licensing preferences or compliance requirements.
Choose opik if…
- License: opik is Apache-2.0, phoenix is Other.
- 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..
- Graph edge: opik is a typed related of phoenix - see the relationship row above.
- 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.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (Arize-ai/phoenix) · observed Aug 1, 2026
- GitHub forks (Arize-ai/phoenix) · observed Aug 1, 2026
- Last push (Arize-ai/phoenix) · observed Aug 1, 2026
- License file (Other) · observed Aug 1, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (comet-ml/opik) · observed Aug 7, 2026
- GitHub forks (comet-ml/opik) · observed Aug 7, 2026
- Last push (comet-ml/opik) · observed Aug 7, 2026
- License file (Apache-2.0) · observed Aug 7, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: phoenix 11k · opik 21k (synced Aug 1, 2026).
Common questions
- What is the difference between phoenix and opik?
- phoenix: AI Observability & Evaluation. opik: Debug, evaluate, and monitor your LLM applications with comprehensive tracing and production-ready dashboards. See the comparison table for live GitHub stats and shared categories.
- When should I choose phoenix over opik?
- Choose phoenix over opik when License: phoenix is Other, opik is Apache-2.0; Pricing: Pricing details or information about different pricing tiers is not provided in the repository content.; Requirements: Min -1 GB RAM; Requires Docker; Graph edge: phoenix is a typed related of opik - see the relationship row above; Tags unique to phoenix: agents, ai-monitoring, ai-observability, aiengineering; phoenix ships Docker support for self-hosted deployment; When your team requires a tool that offers advanced observability features specifically designed to track the performance of AI models overtime.
- When should I choose opik over phoenix?
- Choose opik over phoenix when License: opik is Apache-2.0, phoenix is Other; 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.; Graph edge: opik is a typed related of phoenix - see the relationship row above; 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 avoid phoenix?
- Consider another solution if your primary requirement is focused on generic monitoring tools that do not provide deep-dive observability features for AI models specifically. If you are constrained by the Elastic License 2.0 terms, which might not align with your organization's licensing preferences or compliance requirements.
- 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.
- Is phoenix or opik more popular on GitHub?
- opik has more GitHub stars (21,177 vs 10,847). Stars measure visibility, not whether either tool fits your constraints.
- Are phoenix and opik open source?
- Yes - both are open-source projects on GitHub (phoenix: Other, opik: Apache-2.0).
- Where can I find alternatives to phoenix or opik?
- GraphCanon lists graph-backed alternatives at phoenix alternatives and opik alternatives (phoenix markdown twin, opik 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, phoenix or opik?
- phoenix: Very active. opik: 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 phoenix and opik?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: phoenix trust report; opik trust report.