Humanloop vs LangSmith

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

Humanloop

🟡Low Code

Business Analytics

LLMOps platform for prompt engineering, evaluation, and optimization with collaborative workflows for AI product development teams.

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Starting Price

Free
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LangSmith

🔴Developer

Business Analytics

Tracing, evaluation, and observability for LLM apps and agents.

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Starting Price

Free
Full ReviewVisit Site

Feature Comparison

Scroll horizontally to compare details.

FeatureHumanloopLangSmith
CategoryBusiness AnalyticsBusiness Analytics
Pricing Plans16 tiers15 tiers
Starting PriceFreeFree
Key Features
    • • Workflow Runtime
    • • Tool and API Connectivity
    • • State and Context Handling

    Humanloop - Pros & Cons

    Pros

    • ✓Purpose-built for LLM development with specialized tools that don't exist in general ML platforms
    • ✓Collaborative workflows enable non-technical team members to contribute to AI product development
    • ✓Comprehensive evaluation framework combines automated metrics with human feedback for quality assurance
    • ✓Strong version control and deployment practices reduce risk of shipping low-quality prompts to production
    • ✓Multi-model optimization helps teams balance cost, performance, and quality across different use cases

    Cons

    • ✗Learning curve for teams new to systematic prompt engineering and evaluation methodologies
    • ✗Pricing can become expensive for high-volume applications due to per-call billing model
    • ✗Limited integration ecosystem compared to established DevOps and ML platforms

    LangSmith - Pros & Cons

    Pros

    • ✓Comprehensive observability with detailed trace visualization
    • ✓Native MCP support for universal agent tool deployment
    • ✓Generous free tier for individual developers and small projects
    • ✓No-code Agent Builder reduces technical barriers
    • ✓Managed deployment infrastructure with production-ready scaling
    • ✓Strong integration with entire LangChain ecosystem

    Cons

    • ✗Primarily designed for LangChain applications (limited framework support)
    • ✗Steep pricing jump from Plus to Enterprise tier
    • ✗Pay-as-you-go model can become expensive for high-volume applications
    • ✗Enterprise features require annual contracts
    • ✗14-day retention on base traces may be insufficient for some use cases

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    🔒 Security & Compliance Comparison

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    Security FeatureHumanloopLangSmith
    SOC2—✅ Yes
    GDPR—✅ Yes
    HIPAA——
    SSO—✅ Yes
    Self-Hosted—🔀 Hybrid
    On-Prem—✅ Yes
    RBAC—✅ Yes
    Audit Log—✅ Yes
    Open Source—❌ No
    API Key Auth—✅ Yes
    Encryption at Rest—✅ Yes
    Encryption in Transit—✅ Yes
    Data Residency—US, EU
    Data Retention—configurable
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    Ready to Choose?

    Read the full reviews to make an informed decision

    Review HumanloopReview LangSmith