Langtrace vs Arize Phoenix

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

Langtrace

🔴Developer

Business Analytics

Open-source observability platform for LLM applications and AI agents with OpenTelemetry-based tracing, cost tracking, and performance analytics.

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Starting Price

Free
Full ReviewVisit Site

Arize Phoenix

🔴Developer

Business Analytics

Open-source LLM observability and evaluation platform built on OpenTelemetry. Self-host it free with no feature gates, or use Arize's managed cloud.

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Starting Price

Free
Full ReviewVisit Site

Feature Comparison

Scroll horizontally to compare details.

FeatureLangtraceArize Phoenix
CategoryBusiness AnalyticsBusiness Analytics
Pricing Plans15 tiers tiers
Starting PriceFreeFree
Key Features
    • • Workflow Runtime
    • • Tool and API Connectivity
    • • State and Context Handling

    Langtrace - Pros & Cons

    Pros

    • ✓Open-source with generous free tier and self-hosting options
    • ✓Built on industry-standard OpenTelemetry for interoperability
    • ✓Extensive integration support for LLM providers and frameworks
    • ✓Real-time observability with detailed trace visualization
    • ✓Complete data ownership with self-hosted deployment option

    Cons

    • ✗TypeScript SDK has limited framework support compared to Python
    • ✗AGPL license may be restrictive for some commercial use cases
    • ✗Self-hosted setup requires managing multiple services (Next.js, Postgres, ClickHouse)
    • ✗Pricing model scales per-user which can become expensive for larger teams
    • ✗Limited semantic conventions as standards are still evolving

    Arize Phoenix - Pros & Cons

    Pros

    • ✓Fully open source with zero feature gates or trace limits
    • ✓Built on OpenTelemetry for vendor and framework agnostic integration
    • ✓Self-hosted deployment keeps all data under your control
    • ✓Kubernetes Helm chart for production-ready cluster deployment
    • ✓Evaluation framework for scoring and comparing LLM outputs
    • ✓Active community with 12,000+ GitHub stars

    Cons

    • ✗Documentation lags behind feature development
    • ✗UI is functional but less polished than commercial alternatives like LangSmith
    • ✗No built-in alerting; requires custom integration with external systems
    • ✗Steeper learning curve without guided onboarding
    • ✗Self-hosting requires DevOps capacity for maintenance and scaling

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    🔒 Security & Compliance Comparison

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    Security FeatureLangtraceArize Phoenix
    SOC2—✅ Yes
    GDPR—✅ Yes
    HIPAA——
    SSO——
    Self-Hosted—🔀 Hybrid
    On-Prem—✅ Yes
    RBAC——
    Audit Log——
    Open Source—✅ Yes
    API Key Auth—✅ Yes
    Encryption at Rest—✅ Yes
    Encryption in Transit—✅ Yes
    Data Residency——
    Data Retention—configurable
    🦞

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    Ready to Choose?

    Read the full reviews to make an informed decision

    Review LangtraceReview Arize Phoenix