LLM Evaluation, Observability and Quality

LangSmith

LangChain's hosted observability and evaluation platform for LLM apps.

About LangSmith

LangSmith is the commercial observability platform from LangChain. Trace agent runs, debug chains, evaluate prompt changes, and ship to production. The default choice for teams already on LangChain or LangGraph.

Test, monitor, and grade LLM outputs in development and production. Hallucination detection, regression testing, traceability, and continuous quality measurement.

Products

LangSmith products and platform components

Direct links to the vendor's product pages. Last reviewed 2026-05-07.

LangSmith

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LLM observability, evaluation, and prompt management.

CWS engagement

How CWS works with LangSmith

CWS helps customers evaluate, deploy, and operate LangSmith products as part of an AI security program. Engagements span vendor selection, proof-of-concept design, integration with existing controls, day-2 operations, and exit planning if the fit changes over time.

CWS does not resell LangSmith. The recommendation is honest, evidence-based, and tied to the customer's posture gaps — not to channel economics.

Engage CWS on LangSmith

Not sure if LangSmith fits your gaps?

The free AI Posture Check scores your security across six dimensions in 10 minutes. Use the result to shortlist vendors that fit your actual posture — not the loudest demo.

Take the AI Posture Check