LangSmith
Optimize and debug your LLM applications with LangSmith.
LangSmith in one line
Discover LangSmith, the leading observability tool for LangChain and LLM application debugging. Explore pricing, features, and ideal use cases.
What LangSmith does for your business
LangSmith is a specialized tool designed for monitoring and debugging LLM applications in production. It is ideal for LLM developers and AI engineers who need a reliable observability solution. Choose LangSmith if you are working with LangChain and require robust tools for tracing, evaluation, and prompt management.
Is LangSmith a good fit for you?
- Choose it if you need comprehensive observability for LangChain applications.
- Skip it if you don't work with LLMs or LangChain.
- Best next step: Explore the free plan to assess its capabilities.
LangSmith workflows (step-by-step)
Practical ways teams use this tool to save time and drive results.
- Debugging LLMs — 1. Identify issues; 2. Use tracing; 3. Implement fixes
- Prompt Optimization — 1. Analyze prompts; 2. Evaluate performance; 3. Optimize for results
- Production Monitoring — 1. Set up monitoring; 2. Track metrics; 3. Adjust configurations
Copy-paste prompts for LangSmith
Use these templates to get better outputs in minutes.
- Use case: LLM Debugging: 'Trace LLM application errors and identify root causes.'
- Use case: Prompt Optimization: 'Evaluate prompt effectiveness and suggest improvements.'
- Use case: Production Monitoring: 'Monitor LLM performance metrics in real-time.'
- Use case: Tracing: 'Track application flow and detect anomalies.'
LangSmith features that drive ROI
- Tracing — Gain insights into application flow.
- Evaluation — Assess LLM performance effectively.
- Monitoring — Keep track of application metrics in real-time.
- Prompt Management — Optimize and manage prompts efficiently.
- Annotation — Enhance data labeling for better model training.
Pros & cons of LangSmith
- Comprehensive observability for LangChain applications.
- Free plan available for initial exploration.
- Integrates with popular programming languages like Python and JavaScript.
- Custom enterprise solutions for large-scale deployments.
- Primarily focused on LangChain, limiting broader applicability.
- Advanced features locked behind a paywall.
- Enterprise pricing is custom, which may lack transparency.
LangSmith pricing (free/freemium/paid)
Start free, validate the value, and only upgrade when you hit limits.
| Plan | Price | What you get |
|---|---|---|
| Free | $0/month | Basic features for individual use. |
| Plus | $39/seat/month | Advanced features for professional use. |
| Enterprise | Custom | Tailored solutions for large organizations. |
LangSmith use cases for entrepreneurs
LangSmith integrations (and what’s possible)
If something isn’t native, it can often be connected via Zapier/Make/API.
Which LangSmith model to use for what
Who gets the most value from LangSmith
LLM developers; AI engineers
LangSmith by business type
Click a business type to discover more tools that may fit.
Best alternatives to LangSmith
- Weights & Biases
- Neptune.ai
- Comet.ml
- MLflow
- TensorBoard
Verdict: should you use LangSmith?
LangSmith is highly recommended for developers working with LangChain and LLMs. Those not using these technologies should consider other options.
How to get better results with LangSmith
To get the best results with LangSmith, start by utilizing the free plan to familiarize yourself with its core features. Focus on setting up comprehensive monitoring and tracing for your LLM applications to quickly identify and resolve issues. For businesses looking to scale, consider the Plus or Enterprise plans to access advanced features and custom solutions tailored to your needs.
LangSmith reviews & feedback summary
LangSmith is praised for its robust observability features tailored for LangChain applications. Users appreciate the free plan for initial testing, though some note that advanced features require a paid subscription. The tool's focus on LangChain may limit its appeal to a broader audience.
LangSmith FAQ (business questions)
What is LangSmith used for?
LangSmith is used for monitoring and debugging LLM applications in production environments.
Does LangSmith offer a free plan?
Yes, LangSmith offers a free plan with basic features.
Can LangSmith integrate with Python?
Yes, LangSmith integrates with Python, JavaScript, and any LLM.
What are the pricing options for LangSmith?
LangSmith offers a free plan, a Plus plan at $39/seat/month, and custom Enterprise solutions.
Who should use LangSmith?
LLM developers and AI engineers working with LangChain should use LangSmith.
Is there an enterprise plan available for LangSmith?
Yes, LangSmith offers custom enterprise plans.
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