These tools competes with

LangfusevsHelicone

OSS LLM engineering platform versus LLM observability, cost tracking, request logging

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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 Helicone when…

  • You want one-line LLM observability setup
  • Caching LLM responses to cut costs matters
  • You're an early-stage startup optimizing quickly

Side-by-side comparison

Field
Langfuse
Helicone
Category
LLM Infrastructure
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
Pro: Usage-based
GitHub Stars
7,000
2,500

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with clean UX.

Helicone

Open-source LLM observability platform. One-line integration to log every LLM request, track costs, and debug slow or failing calls.

Shared Connections6 tools both integrate with

Only Langfuse (21)

CursorClaude CodeOpenHandsCrewAIAutoGenLangGraphLangChainLlamaIndexDifyMastra

Only Helicone (2)

LangfuseAnthropic API

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