---
id: "b805"
language: "en"
library: "tools"
official_url: "https://www.langchain.com/langsmith/observability"
profile_updated_on: "2026-10-24"
---

# LangSmith

Trace agents, tools and models end to end, analyze cost, latency and failures, and monitor quality with online evaluations.

- Company / organization: LangChain, Inc.
- Company country / region: United States · Company headquarters
- Category: Model development
- Official website: [https://www.langchain.com/langsmith/observability](https://www.langchain.com/langsmith/observability)
- Profile updated: 2026-10-24


## Overview

LangSmith observability organizes model and tool calls into traces for diagnosing conversation, retrieval and agent-trajectory failures. Dashboards track tokens, latency, cost, errors and feedback, with online evaluations and clustering. It supports other frameworks and OpenTelemetry without requiring LangChain; managed, BYOC and self-hosted deployments have different data paths.

## Official sources and references

- [Official website](https://www.langchain.com/langsmith/observability)

## Reading & subscriptions

- [Interactive profile](../../../products/langsmith--b805.html)
- [Read](../../../read/en/products/langsmith--b805.html)
- [JSON](../../../read/en/products/langsmith--b805.json)

Descriptions summarize public information; consult official websites for features, pricing and regional availability.