Cleanlab vs LangSmith

Side-by-side comparison of Cleanlab and LangSmith: pricing, features, API access, and community ratings.

AI comparison summary

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	Cleanlab Keep AI mistakes away from your customers. Visit	LangSmith The end-to-end platform for building, testing, and monitoring LLM-powered applications Visit
Category	AI observability	AI observability
Pricing	Freemium	Freemium
Starting price
Free tier
Audience	All audiences	Technical
API available
Open source
Self-hostable
Model provider		LangChain (model-agnostic)
Founded		2023
Headquarters		San Francisco, USA
Key strengths	·Real-time hallucination detection ·AI guardrails for safety and compliance ·Human-in-the-loop remediation workflow ·Works with any AI system and Knowledge Base	·Deep LangChain & LangGraph integration for zero-config tracing ·End-to-end LLM observability with detailed trace visualization ·Built-in evaluation and dataset management for regression testing ·Prompt management with versioning and A/B testing support