GraphCanon
Home/Compare/phoenix vs langtrace

Comparison

phoenix vs langtrace

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 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 · phoenix alternatives · langtrace alternatives

GraphCanon updated 2d

phoenix logo

phoenix

Arize-ai/phoenix

★ 11kpushed Aug 1, 2026
vs
langtrace logo

langtrace

Scale3-Labs/langtrace

★ 1.2kpushed Nov 17, 2025

Trust & integrity

Signalphoenixlangtrace
Maintenance
Very active (0d since push)
As of 3w · github_public_v1
Slowing (276d since push)
As of 2d · github_public_v1
Provenance
Not a fork · Organization account
As of 3w · github_public_v1
Not a fork · Organization account
As of 2d · 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
phoenix trust reportlangtrace trust reportTrust methodology

Tagline

phoenix
AI Observability & Evaluation
langtrace
Open Telemetry based observability tool for LLM applications

Stars

phoenix
11k
langtrace
1.2k

Forks

phoenix
1.0k
langtrace
126

Open issues

phoenix
839
langtrace
1

Language

phoenix
Python
langtrace
TypeScript

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.
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

phoenix
-
langtrace
-

Runtime

phoenix
-
langtrace
-

License

phoenix
Other
langtrace
AGPL-3.0

Last pushed

phoenix
Aug 1, 2026
langtrace
Nov 17, 2025

Categories

phoenix
Evaluation & Observability
langtrace
Evaluation & Observability

Trust and health

Maintenance

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

Days since push

phoenix
0d
langtrace
276d

Open issues (now)

phoenix
839
langtrace
1

Stars delta

phoenix
Unknown
langtrace
+12 (30d)

Open issues delta

phoenix
Unknown
langtrace
0 (30d)

Full report

phoenix
Trust report
langtrace
Trust report

Typed relationship

phoenix related langtrace

Choose phoenix if…

  • phoenix is primarily Python; langtrace is TypeScript.
  • License: phoenix is Other, langtrace is AGPL-3.0.
  • 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 langtrace - see the relationship row above.
  • Tags unique to phoenix: agents, ai-monitoring, ai-observability, aiengineering.
  • 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.
GitHubDetails

Choose langtrace if…

  • langtrace is primarily TypeScript; phoenix is Python.
  • License: langtrace is AGPL-3.0, phoenix is Other.
  • Graph edge: langtrace is a typed related of phoenix - see the relationship row above.
  • Tags unique to langtrace: ai, evaluations, gpt, llm.
  • 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

phoenix 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: phoenix 11k · langtrace 1.2k (synced Aug 1, 2026).

Common questions

What is the difference between phoenix and langtrace?
phoenix: AI Observability & Evaluation. langtrace: Open Telemetry based observability tool for LLM applications. See the comparison table for live GitHub stats and shared categories.
When should I choose phoenix over langtrace?
Choose phoenix over langtrace when phoenix is primarily Python; langtrace is TypeScript; License: phoenix is Other, langtrace is AGPL-3.0; 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 langtrace - see the relationship row above; Tags unique to phoenix: agents, ai-monitoring, ai-observability, aiengineering; 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 langtrace over phoenix?
Choose langtrace over phoenix when langtrace is primarily TypeScript; phoenix is Python; License: langtrace is AGPL-3.0, phoenix is Other; Graph edge: langtrace is a typed related of phoenix - see the relationship row above; Tags unique to langtrace: ai, evaluations, gpt, llm; When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial.
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 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 phoenix or langtrace more popular on GitHub?
phoenix has more GitHub stars (10,847 vs 1,228). Stars measure visibility, not whether either tool fits your constraints.
Are phoenix and langtrace open source?
Yes - both are open-source projects on GitHub (phoenix: Other, langtrace: AGPL-3.0).
Where can I find alternatives to phoenix or langtrace?
GraphCanon lists graph-backed alternatives at phoenix alternatives and langtrace alternatives (phoenix 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, phoenix or langtrace?
phoenix: 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 phoenix and langtrace?
GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: phoenix trust report; langtrace trust report.

Was this helpful?

Anonymous feedback helps us improve pages and translations.