Observability
LangSmith
LLM observability and evaluation platform
4.4(765 reviews)
FreemiumFree tier / $39+/moLangSmith provides debugging, testing, and monitoring for LLM applications with detailed traces and evaluations.
Tracing
Evaluation
Datasets
Playground
Monitoring
Annotation
DebuggingTestingMonitoringOptimization
Best for: AI engineers, ML teams, LangChain users
// pros
- Comprehensive tracing
- Good evaluations
- LangChain integration
- Free tier
// cons
- LangChain focused
- Learning curve
- UI could be better
integrations
LangChainAny LLM appCI/CD
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