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Langfuse

Recommended

Open-source LLM observability and analytics platform

54 reviews
Has API
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In a nutshell

Langfuse is essential for any team running LLM applications in production. The tracing and cost tracking provide visibility you cannot get otherwise.

What's great

  • Open-source and self-hostable
  • Excellent tracing
  • Cost tracking per request

Watch out for

  • Only useful for LLM apps
  • Requires integration effort
  • Analytics depth still improving

Best for

AI engineering teams that need observability into their LLM application performance and costs

Not ideal for

Teams not building custom LLM applications

Pricing

Starter

$59/mo

View official pricing →
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