LangSmith

Developer platform for debugging and monitoring LangChain-based AI agent applications

Best for: Teams building LangChain-based agents needing observability Not ideal for: Best value for LangChain users
Price Paid
Free plan Yes
For AI engineers using LangChain
Level intermediate
Updated Jan 2025
Category AI Agents
01

Why choose LangSmith

LangSmith is a developer platform for debugging, testing, evaluating, and monitoring LLM applications and AI agents built with LangChain. It provides end-to-end tracing of agent runs, dataset management for evaluations, and collaborative tools for teams to ensure their AI applications work reliably.

  • +Seamless LangChain integration
  • +Great evaluation tooling
  • +Good collaborative features
  • +Solid free tier
02

Where it falls short

  • Best value for LangChain users
  • Some features require paid tier
  • Not framework-agnostic
03

Best for these users

👤
Target audience
AI engineers using LangChain, ML teams
📌
Best for
Teams building LangChain-based agents needing observability
Skip if you need
Best value for LangChain users
04

Pricing overview

Freemium Free plan: Yes

Free Developer plan available. Plus starts at $39/month. Enterprise with custom pricing.

Check current pricing →
05

Key features

End-to-end run tracing
Evaluation dataset management
Automated testing tools
Production monitoring
Team collaboration features
LangChain native integration
07

Alternatives to LangSmith

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08

Related comparisons

09

The verdict

LangSmith Freemium

LangSmith is a solid choice for ai engineers using langchain who need seamless langchain integration. At freemium, it delivers good value. Main caveat: best value for langchain users. Compare with alternatives before committing.