Arize Phoenix vs Laminar

Detailed side-by-side comparison to help you choose the right tool

Arize Phoenix

🟡Low Code

AI observability

Arize Phoenix provides open-source tracing, evaluations, and MCP tooling for ai observability workflows. It includes MCP compatibility.

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Starting Price

Free
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Laminar

🔴Developer

AI observability

AI tracing and evaluation platform for LLM products and agents

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Starting Price

Custom
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Feature Comparison

Scroll horizontally to compare details.

FeatureArize PhoenixLaminar
CategoryAI observabilityAI observability
Pricing Plans84 tiers6 tiers
Starting PriceFree
Key Features
  • • LLM Tracing & Observability
  • • Evaluation Framework
  • • Experiment Management

    Arize Phoenix - Pros & Cons

    Pros

    • ✓Open-source and self-hostable
    • ✓Trace timelines expose intermediate failures
    • ✓AX Free includes 25,000 monthly spans
    • ✓Datasets support regression testing

    Cons

    • ✗Instrumentation and evaluator design require engineering
    • ✗Pro includes only 50,000 spans and 30-day retention
    • ✗Self-hosting shifts operations to the user
    • ✗Unredacted traces can capture sensitive data

    Laminar - Pros & Cons

    Pros

    • ✓Clear pricing with concrete data limits, retention windows, and overage costs.
    • ✓Debugger is aimed specifically at long-running agents, where ordinary request logs are not enough.
    • ✓Free plan is practical for a small developer project or proof of concept.
    • ✓On-premise option makes it more plausible for teams with strict data-control requirements.

    Cons

    • ✗Smaller ecosystem than Langfuse or LangSmith, so integrations and community examples may be thinner.
    • ✗Signals pricing adds another usage dimension that teams need to monitor.
    • ✗Mostly developer-focused; non-technical product teams will still need engineering help to instrument apps.

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    🔒 Security & Compliance Comparison

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    Security FeatureArize PhoenixLaminar
    SOC2✅ Yes—
    GDPR✅ Yes—
    HIPAA❌ No—
    SSO❌ No—
    Self-Hosted✅ Yes—
    On-Prem✅ Yes—
    RBAC❌ No—
    Audit Log❌ No—
    Open Source✅ Yes—
    API Key Auth✅ Yes—
    Encryption at Rest✅ Yes—
    Encryption in Transit✅ Yes—
    Data ResidencyAvailable—
    Data Retentionconfigurable—
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    Ready to Choose?

    Read the full reviews to make an informed decision

    Review Arize PhoenixReview Laminar