These tools competes with
OpikvsLangfuse
Open-source LLM tracing and evaluation platform by Comet versus OSS LLM engineering platform
Compare interactively in Explore →Choose Opik when…
- •want OSS observability with built-in eval metrics
- •already using Comet for ML experiment tracking
- •need hallucination detection out of the box
Choose Langfuse when…
- •You want open-source LLM observability
- •Self-hosting your tracing stack is important
- •You need cost tracking across models and users
Side-by-side comparison
Field
Opik
Langfuse
Category
observability
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
OSS: FreeCloud: Free tier + pay as you go
Cloud: $59/mo
GitHub Stars
⭐ 4,200
⭐ 7,000
Health
●85 — Active
●80 — Active
Opik
Opik is an open-source LLM observability platform from Comet that provides detailed tracing, prompt tracking, and automated evaluation for AI applications. One-line integration captures every LLM call, cost, and output with built-in eval metrics including hallucination detection.
Only Opik (2)
LangfuseMaxim AI
Only Langfuse (30)
Claude CodeCrewAILangGraphLangChainCursorLlamaIndexOpenHandsDifyMastraAutoGen
Explore the full AI landscape
See how Opik and Langfuse fit into the bigger picture — 207 tools, 452 relationships, all mapped.