HoneyHive vs LangSmith: Observability, Prompts & Evals Comparison
Compare HoneyHive and LangSmith side by side. Both are tools in the Observability, Prompts & Evals category.
Updated March 9, 2026
The short answer
Choose HoneyHive if comprehensive observability with OpenTelemetry-native distributed tracing across 100+ LLMs and frameworks.
Choose LangSmith if deep integration with LangChain framework provides unmatched observability for LangChain applications.
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Quick Comparison
| Category | Observability, Prompts & Evals | Observability, Prompts & Evals |
| Pricing | paid | Freemium |
| Best For | Enterprise teams managing prompts and running evals | LangChain developers who need integrated tracing, evaluation, and prompt management |
| Website | honeyhive.ai | smith.langchain.com |
| Key Features |
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| Use Cases | — |
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Pros & Cons: HoneyHive vs LangSmith
- +Comprehensive observability with OpenTelemetry-native distributed tracing across 100+ LLMs and frameworks
- +Strong security and compliance (SOC 2 Type II, GDPR, HIPAA) with flexible deployment options
- +Built-in evaluation tools with 25+ pre-built evaluators and human review workflows
- +Centralized prompt versioning with Git-native version control and GitOps workflows
- +Session replay and multi-agent system visualization for debugging complex AI applications
- −Pricing information not transparently available on website
- −May have steep learning curve for teams new to AI observability
- −Enterprise-focused features may be overkill for smaller projects
- +Deep integration with LangChain framework provides unmatched observability for LangChain applications
- +Comprehensive evaluation capabilities with custom metrics and automated regression testing
- +Excellent tracing UI with detailed step-by-step execution visualization
- +Strong dataset management and annotation workflows for human feedback
- −Tight coupling to LangChain ecosystem limits flexibility for non-LangChain applications
- −UI scalability issues reported when working with very large datasets
- −Production testing limitations - relies primarily on production logs for test datasets
- −SaaS-only deployment with no self-hosting option may not suit all enterprise requirements
Pricing: HoneyHive vs LangSmith
- · 5,000 traces per month
- · 14-day retention
- · One seat
- · Basic evaluations
- · 100,000 traces (overage ~$0.50 per 1,000)
- · 400-day retention
- · Full evaluations
- · Custom dashboards
- · Custom trace volumes
- · Custom retention policies
- · SSO
- · Dedicated support
When to Choose HoneyHive vs LangSmith
- Debugging LangChain and LangGraph applications
- Prompt iteration and A/B testing
- LLM output evaluation and scoring
About HoneyHive
HoneyHive is an enterprise-grade AI observability and evaluation platform that helps teams monitor, debug, and optimize AI agents and applications at scale. The platform provides OpenTelemetry-native distributed tracing across 100+ LLMs and agent frameworks, enabling visibility into complex multi-agent systems through session replay, online evaluation for detecting failures in live systems, and comprehensive artifact management. HoneyHive offers 25+ pre-built evaluators for quality and safety assessment, offline experiment capabilities with regression detection, and CI/CD integration for automated testing. The platform is SOC 2 Type II certified, GDPR and HIPAA compliant, with deployment options including multi-tenant SaaS, dedicated cloud, or self-hosted air-gapped environments.
About LangSmith
LangSmith is LangChain's observability and evaluation platform for building production-grade LLM applications. Founded in July 2023 by Harrison Chase and Ankush Gola as part of the LangChain ecosystem, LangSmith provides comprehensive tracing of every LLM call, chain execution, and agent step with detailed visibility into inputs, outputs, latency, token usage, and cost. The platform includes annotation queues for human feedback, dataset management for systematic evaluation, and regression testing capabilities for prompt changes. With over 1 million developers using LangChain products globally, LangSmith has become the go-to debugging and monitoring tool for teams building with the LangChain framework, serving major enterprises including Klarna, LinkedIn, Replit, GitLab, Elastic, and Cisco.
What is Observability, Prompts & Evals?
Tools for monitoring LLM applications in production, managing and versioning prompts, and evaluating model outputs. Includes tracing, logging, cost tracking, prompt engineering platforms, automated evaluation frameworks, and human annotation workflows.
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