Monitoring & Observability
🎯 Langfuse vs LangSmith
Community Vote — Which tool wins?
Langfuse
Tool AOpen-source LLM engineering platform for traces, prompts, and metrics.
Starting Price
Open-source + Cloud
Key Strengths
- ✓Fully open-source with self-hosting that has complete feature parity with the cloud version
- ✓Hierarchical tracing captures the full execution tree of complex agent workflows, not just LLM calls
- ✓Prompt management with versioning and production linking creates a tight iteration feedback loop
LangSmith
Tool BTracing, evaluation, and observability for LLM apps and agents.
Starting Price
Paid + Free tier
Key Strengths
- ✓Best-in-class LLM tracing and debugging platform
- ✓Deep integration with LangChain ecosystem
- ✓Powerful evaluation and testing workflows for prompt development
Which would you choose for...
Vote in each scenario below