These tools competes with
LangfusevsLangSmith
OSS LLM engineering platform versus LLM tracing, evaluation, and dataset management
Compare interactively in Explore →Choose Langfuse when…
- •You want open-source LLM observability
- •Self-hosting your tracing stack is important
- •You need cost tracking across models and users
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
Side-by-side comparison
Field
Langfuse
LangSmith
Category
LLM Infrastructure
LLM Infrastructure
Type
Open Source
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
Plus: $39/mo
GitHub Stars
⭐ 7,000
—
Health
●80 — Active
—
Langfuse
Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with clean UX.
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 Langfuse (23)
Claude CodeCrewAILlamaIndexOpenHandsDifyMastraAutoGenAgnoLiteLLMLangSmith
Only LangSmith (2)
PydanticAILangfuse
Explore the full AI landscape
See how Langfuse and LangSmith fit into the bigger picture — 207 tools, 452 relationships, all mapped.