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Data quality: Editorially Reviewed
Benchmarking
Language (LLM / NLP)
Subscription
Model evaluation
Model monitoring
Observability
MLOps & model tooling
Predictive / classical ML
Freemium
Private cloud / VPC
SaaS (vendor-hosted)
Cross-industry / Horizontal
Enterprise / custom quote

LangSmith

MLOps & model tooling

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Overview

LangSmith is LangChain’s platform for AI application engineering. It captures traces, builds datasets, runs offline and online evaluations, supports human feedback, and monitors production behavior for LLM, RAG, and agent workflows.

Pricing model
Freemium
Deployment
SaaS (vendor-hosted), Private cloud / VPC
Regions served
Global
Categories
Benchmarking, Language (LLM / NLP), Subscription, Model evaluation, Model monitoring, Observability, MLOps & model tooling, Predictive / classical ML, Freemium, Private cloud / VPC, SaaS (vendor-hosted), Cross-industry / Horizontal, Enterprise / custom quote
Last updated
6 October 2026
Published
6 October 2026

Use cases

Model evaluation
Model monitoring

Deployment options

SaaS (vendor-hosted)
Private cloud / VPC

Data sources & provenance

Where this information came from, how it was checked and when it was last looked at. “Last updated” records a change to the record — it does not mean the record was verified.

Data quality
Data quality: Editorially Reviewed
Primary source
langchain.com
Sources cited
1
Last reviewed
5 October 2026
Last updated
6 October 2026

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