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Building Reliable Agents with LangSmith

Building Reliable Agents with LangSmith takes an agent from its first run to a production-ready system through iterative cycles of improvement, using LangSmith to observe and evaluate it.

Open at LangChain ↗Common questions

Who it suits

  • Developers who want a methodical way to make an agent reliable.
  • Teams who want evals, from code-based to LLM-as-judge, in their workflow.

What it covers

  • The agent development lifecycle, observability and tracing.
  • Evaluation: datasets and experiments, code-based evals, LLM-as-judge and pairwise evaluations.
  • Moving toward production: the Insights agent, online evals and automations.

Watch here

From LangChain’s own channel, so you can start without leaving Infrato. Nothing loads from YouTube until you press play.

  • LangChain · 2026

    LangChain Academy New Course: Building Reliable Agents

    Open on YouTube

Common questions about Building Reliable Agents with LangSmith

Is it free?
LangChain Academy labels the course Free.
How long is Building Reliable Agents with LangSmith?
The course page lists 29 lessons.
Who runs it?
LangChain Academy, run by the company behind LangChain, LangGraph and LangSmith.

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Where this comes from

Written from LangChain’s own pages, read on 2026-10-13. Content, prices and availability change, so the provider’s page is the source. We are not affiliated with LangChain and this is not an endorsement.