Best Alternatives to LangSmith
Explore 19 top-rated alternatives to LangSmith in the analytics & monitoring category. Compare features, pricing, and find the perfect fit for your needs.
About LangSmith
Tracing, evaluation, and observability for LLM apps and agents.
Free
Top Recommended Alternatives
CrewAI
AI Agent Builders
From
FreeCrewAI is an open-source Python framework for orchestrating autonomous AI agents that collaborate as a team to accomplish complex tasks. You define agents with specific roles, goals, and tools, then organize them into crews with defined workflows. Agents can delegate work to each other, share context, and execute multi-step processes like market research, content creation, or data analysis. CrewAI supports sequential and parallel task execution, integrates with popular LLMs, and provides memory systems for agent learning. It's one of the most popular multi-agent frameworks with a large community and extensive documentation.
Key Strengths:
- ✓Role-based crew abstraction makes multi-agent design intuitive — define role, goal, backstory, and you're running
- ✓Fastest prototyping speed among multi-agent frameworks: working crew in under 50 lines of Python
AutoGen
Agent Frameworks
From
FreeOpen-source multi-agent framework from Microsoft Research with asynchronous architecture, AutoGen Studio GUI, and OpenTelemetry observability. Now part of the unified Microsoft Agent Framework alongside Semantic Kernel.
Key Strengths:
- ✓Free and open source (MIT license) with no usage restrictions or commercial tiers
- ✓AutoGen Studio provides a visual no-code builder that no other major agent framework offers for free
LangGraph
AI Agent Builders
From
FreeGraph-based stateful orchestration runtime for agent loops.
Key Strengths:
- ✓Graph-based state machine gives precise control over execution flow with conditional branching, loops, and cycles
- ✓Built-in checkpointing enables time-travel debugging, human-in-the-loop approval, and fault-tolerant resume from any step
Microsoft Semantic Kernel
AI Agent Builders
From
FreeSDK for building AI agents with planners, memory, and connectors. - Enhanced AI-powered platform providing advanced capabilities for modern development and business workflows. Features comprehensive tooling, integrations, and scalable architecture designed for professional teams and enterprise environments.
Key Strengths:
- ✓Production-ready enterprise framework with robust session management and type safety features
- ✓Provider-agnostic architecture allows easy switching between LLM providers without code changes
Langfuse
Analytics & Monitoring
From
FreeOpen-source LLM engineering platform for traces, prompts, and metrics.
Key Strengths:
- ✓Fully open-source with self-hosting that has complete feature parity with the cloud version
- ✓Hierarchical tracing captures the full execution tree of complex agent workflows, not just LLM calls
More Analytics & Monitoring Alternatives
Arize Phoenix
Open-source LLM observability and evaluation platform built on OpenTelemetry. Self-host it free with no feature gates, or use Arize's managed cloud.
From Free
Learn MoreBraintrust
AI observability platform with Loop agent that automatically generates better prompts, scorers, and datasets to optimize LLM applications in production.
From Contact
Learn MoreDatadog LLM Observability
Enterprise-grade monitoring for AI agents and LLM applications built on Datadog's infrastructure platform. Provides end-to-end tracing, cost tracking, quality evaluations, and security detection across multi-agent workflows.
From Contact
Learn MoreHelicone
API gateway and observability layer for LLM usage analytics. This analytics & monitoring provides comprehensive solutions for businesses looking to optimize their operations.
From Free
Learn MoreHumanloop
LLMOps platform for prompt engineering, evaluation, and optimization with collaborative workflows for AI product development teams.
From Free
Learn MoreLangtrace
Open-source observability platform for LLM applications and AI agents with OpenTelemetry-based tracing, cost tracking, and performance analytics.
From Free
Learn MoreLangWatch
LLM observability and analytics platform for monitoring AI agent quality, costs, and user experience with real-time dashboards and automated guardrails.
From Free
Learn MoreLaminar (LMNR)
Open-source observability platform for AI agents and LLM applications with tracing, evaluation, and dataset management.
From Free
Learn MorePhoenix by Arize
ML observability platform specialized for LLM applications, providing evaluation, monitoring, and debugging tools for AI agents in production.
From Free
Learn MorePortkey AI
AI gateway and observability platform for managing multiple LLM providers with routing, fallbacks, and cost optimization.
From Free
Learn MoreSentry AI Monitoring
Application monitoring platform with specialized AI agent error tracking and performance monitoring.
From Free
Learn MoreSplunk AI Assistant & Observability
AI-powered observability and monitoring platform with natural language querying and AI assistants for debugging agent systems and infrastructure.
From Contact
Learn MoreSprig
AI-powered product experience platform that analyzes user behavior, surveys, and session replays to surface actionable insights.
Learn MoreWeights & Biases
Experiment tracking and model evaluation used in agent development.
From Free
Learn MoreQuick Comparison
Why Consider LangSmith Alternatives?
While LangSmith is a popular choice in the analytics & monitoring category, exploring alternatives can help you find a tool that better matches your specific needs, budget, or workflow preferences.
Common reasons to explore alternatives include:
- Different pricing models or more affordable options
- Specific features that LangSmith may not offer
- Better integration with your existing tools
- Performance or user experience preferences
- Regional availability or support requirements
Compare the tools above to find the best fit for your specific use case.
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