# Cleanlab vs LangSmith — Fit & Features

Canonical: https://trutool.co/compare/cleanlab-vs-langsmith
Author: Snehil (https://trutool.co/authors/snehil)

Compare Cleanlab and LangSmith by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### Cleanlab
Even today's Large Language Models (LLMs) still occasionally hallucinate incorrect answers that can undermine your business.
Best fit: People and teams evaluating ai evaluation & observability for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://help.cleanlab.ai/tlm/
- [Read Cleanlab profile](https://trutool.co/tools/cleanlab): Read Cleanlab profile

### LangSmith
Observe, evaluate, and deploy AI agents across supported frameworks.
Best fit: AI engineers testing agent quality and monitoring production behavior.
- Agent tracing
- Evaluation workflows
- Agent deployment
Before you choose: Use representative test cases and inspect evaluator failures. Check trace retention, sensitive-data handling, and usage costs.
Pricing: https://www.langchain.com/pricing
- [Read LangSmith profile](https://trutool.co/tools/langsmith): Read LangSmith profile