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LangSmith

LLMOps platform for debugging and monitoring LLM apps.

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4.6(890 reviews)

Visit LangSmith

https://smith.langchain.com

About LangSmith

LLMOps platform by LangChain for debugging, testing, evaluating, and monitoring LLM applications. LangSmith provides full trace visibility into complex chains, agents, and RAG pipelines built with LangChain or any framework.

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Key Features

Full trace visualization for chains and agents
Prompt hub and versioning
Evaluation datasets and automated tests
Production monitoring
Dataset curation

LangSmith Pros & Cons

Pros

  • +Native LangChain integration — zero extra code if you use LangChain
  • +Best-in-class tracing for complex multi-step chains
  • +Evaluation framework helps catch regressions before shipping

⚠️ Cons

  • Most valuable when you use LangChain (less relevant otherwise)
  • Free tier limits retention

Who Is LangSmith Best For?

👤LangChain developers
👤AI engineers building RAG pipelines
👤Teams needing systematic prompt evaluation

Tags

LLMOpsLangChainAI debuggingprompt evaluationRAG monitoring
🏷️

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