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LangSmith

LLM ops and observability platform

4.4(49 reviews)freemium
free tierapi access

Platform for debugging, testing, evaluating, and monitoring LLM applications built with LangChain or any framework.

Pros

  • Full LLM observability
  • Evaluation framework
  • Trace every LLM call

Cons

  • Best with LangChain apps
  • Complex setup for standalone use

Best For

Teams building LLM applications wanting full observability and evaluation tooling

Pricing

Free

Free
  • Core features
  • Email support

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