These tools competes with
LangSmithvsLangfuse
LLM tracing, evaluation, and dataset management versus OSS LLM engineering platform
Compare interactively in Explore →Choose LangSmith when…
- •You're already in the LangChain ecosystem
- •You want end-to-end tracing for LangChain apps
- •Dataset management and evals are part of your workflow
Choose Langfuse when…
- •You want open-source LLM observability
- •Self-hosting your tracing stack is important
- •You need cost tracking across models and users
Side-by-side comparison
Field
LangSmith
Langfuse
Category
LLM Infrastructure
LLM Infrastructure
Type
Commercial
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Plus: $39/mo
Cloud: $59/mo
GitHub Stars
—
⭐ 7,000
Health
—
●80 — Active
LangSmith
LangChain's observability platform. Trace every LLM call, run evals on datasets, and manage prompts in production.
Shared Connections7 tools both integrate with
Only LangSmith (2)
PydanticAILangfuse
Only Langfuse (23)
Claude CodeCrewAILlamaIndexOpenHandsDifyMastraAutoGenAgnoLiteLLMLangSmith
Explore the full AI landscape
See how LangSmith and Langfuse fit into the bigger picture — 207 tools, 452 relationships, all mapped.