Langfuse
Open-source LLM observability platform for tracing, debugging, and monitoring AI agents
Why choose Langfuse
Langfuse is an open-source LLM observability and analytics platform for AI agents and applications. It provides detailed tracing of every LLM call, prompt management, evaluation tools, and cost tracking — giving teams the visibility they need to debug, optimize, and monitor AI agents in production.
- Comprehensive tracing capabilities
- Open-source and self-hostable
- Great prompt management
- Strong community adoption
Where it falls short
- More complex to set up vs SaaS
- Some advanced features need Pro
- Dashboard can be overwhelming initially
Best for these users
Pricing overview
Open-source self-hosted is free. Cloud starts at $0 for hobby, $59/month for team plan.
Check current pricing →Key features
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The verdict
Langfuse is a solid choice for ai engineers who need comprehensive tracing capabilities. At freemium, it delivers good value. Main caveat: more complex to set up vs saas. Compare with alternatives before committing.