LangSmith
The All-in-One Platform for Building, Debugging, and Monitoring LLM-Powered Applications
Overview
LangSmith is a comprehensive platform designed to streamline the entire lifecycle of LLM application development. Tightly integrated with the LangChain ecosystem, it provides deep visibility into the execution of chains and agents, making it easy to debug complex interactions. LangSmith allows developers to create and run evaluations on their applications, monitor performance in production, and collect human feedback to guide improvements. It serves as a central hub for building production-ready LLM applications.
✨ Key Features
- Full-Stack Tracing & Debugging
- LLM & Chain Evaluation
- Production Monitoring & Analytics
- Prompt Hub for collaboration
- Dataset Management
- Human-in-the-loop feedback
- Seamless LangChain Integration
🎯 Key Differentiators
- Deepest integration with the LangChain ecosystem
- Seamless transition from development to production
- Powerful debugging tools for complex chains and agents
- Backed by the creators of LangChain
Unique Value: LangSmith provides an integrated, all-in-one platform that takes the guesswork out of building, debugging, and monitoring production-grade LLM applications, especially for teams using LangChain.
🎯 Use Cases (5)
✅ Best For
- End-to-end tracing of complex agentic workflows
- Regression testing of LLM applications in CI/CD
- Monitoring and alerting for production RAG systems
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Monitoring non-LangChain applications (though possible, it's less seamless)
- Traditional machine learning model observability
🏆 Alternatives
While other tools offer LLM observability, LangSmith's native integration with LangChain provides a level of detail and ease-of-use for debugging that is unmatched for users of that framework.
💻 Platforms
🔌 Integrations
🛟 Support Options
- ✓ Email Support
- ✓ Dedicated Support (Enterprise tier)
🔒 Compliance & Security
💰 Pricing
✓ 14-day free trial
Free tier: Developer Plan: Free for individuals, includes 5k traces per month.
🔄 Similar Tools in LLM Evaluation & Testing
Arize AI
An end-to-end platform for ML observability and evaluation, helping teams monitor, troubleshoot, and...
Deepchecks
An open-source and enterprise platform for testing and validating machine learning models and data, ...
Langfuse
An open-source platform for tracing, debugging, and evaluating LLM applications, helping teams build...
Weights & Biases
A platform for tracking experiments, versioning data, and managing models, with growing support for ...
Galileo
An enterprise-grade platform for evaluating, monitoring, and optimizing LLM applications, with a foc...
WhyLabs
An AI observability platform that prevents AI failures by monitoring data pipelines and machine lear...