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LangSmith Pricing 2026

Complete pricing guide for LangSmith — plans, costs, and free options.

FreemiumFree tier available, paid plans availableUpdated October 24, 2026

💰 LangSmith Pricing Overview

LangSmith uses a freemium pricing model. Free tier available with optional paid upgrades. LangSmith is an ai agent infrastructure tool known for llmops platform for debugging and monitoring llm apps. You can get started with LangSmith for free and upgrade to a paid plan as your needs grow.

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🔍 Compare Before You Buy

Comparing LangSmith to similar tools helps you make the best choice for your budget and needs:

Helicone

Freemium

Open-source LLM observability, logging, and cost tracking.

Free tier available, paid plans available

Compare with LangSmith →

LangChain

Open Source

Most popular LLM application framework — 90K GitHub stars, chains, agents & memory

Free to use

Compare with LangSmith →
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Is LangSmith Free?

✓Yes, LangSmith offers a free plan

LangSmith is listed as freemium: a free tier with optional paid upgrades. See the maker's site for what each includes.

Check LangSmith pricing at the source

The breakdown above is our summary of LangSmith's published pricing, not a quote. Plans, limits and what each tier includes change without notice — confirm on LangSmith's own pages before you buy.

Official LangSmith site ↗

We do not represent LangSmith and these links are not paid placements.

Is LangSmith Worth It?

LangSmith is a freemium ai agent infrastructure tool that offers 5 key features including Full trace visualization for chains and agents, Prompt hub and versioning, Evaluation datasets and automated tests. LLMOps platform by LangChain for debugging, testing, evaluating, and monitoring LLM applications. LangSmith provides full trace visibility into complex chains, agents, and RAG pipelines built with LangChain or any framework.

✅ LangSmith is a good choice if you need:

  • •Full trace visualization for chains and agents
  • •Prompt hub and versioning
  • •Evaluation datasets and automated tests
  • •Production monitoring
  • •Dataset curation

💡 Value Assessment

With a free tier available, LangSmith is an easy recommendation for anyone looking to try ai agent infrastructure tools without financial commitment. The paid plans offer good value for power users who need the additional features and higher usage limits.

LangSmith Key Features

LangSmith comes packed with features that make it a strong contender in the ai agent infrastructure space. Here's what you get:

1.
Full trace visualization for chains and agents

Full trace visualization for chains and agents helps you work more efficiently with LangSmith.

2.
Prompt hub and versioning

Prompt hub and versioning helps you work more efficiently with LangSmith.

3.
Evaluation datasets and automated tests

Evaluation datasets and automated tests helps you work more efficiently with LangSmith.

4.
Production monitoring

Production monitoring helps you work more efficiently with LangSmith.

5.
Dataset curation

Dataset curation helps you work more efficiently with LangSmith.

LangSmith Alternatives & Their Pricing

Considering alternatives to LangSmith? Here's how competing tools compare on pricing:

Helicone

Freemium

Open-source LLM observability, logging, and cost tracking.

Pricing: Free tier available, paid plans available

LangChain

Open Source

Most popular LLM application framework — 90K GitHub stars, chains, agents & memory

Pricing: Open source (MIT). LangSmith from $39/mo. LangGraph Cloud from $49/mo

Ready to try LangSmith?

Visit the official website for the latest pricing and to get started.

Frequently Asked Questions

Is LangSmith free to use?

Yes, LangSmith offers a free tier that you can use without paying.

What are the best alternatives to LangSmith?

Popular alternatives to LangSmith include Helicone, LangChain. Each offers different features and pricing structures. Compare them on AISO Tools to find the best fit for your needs and budget.

Is LangSmith worth the price?

LangSmith offers features like Full trace visualization for chains and agents, Prompt hub and versioning, Evaluation datasets and automated tests. Whether it's worth the investment depends on your specific needs, usage volume, and budget. The free tier lets you try it before committing to a paid plan.

Learn More

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