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Lunary vs Opik

LunaryOpik

Bottom line: Lunary for chatbot and RAG builders; Opik for teams wanting open-source eval plus tracing.

	Lunary Open-source LLM observability and prompt management for chatbots and RAG Visit	Opik Open-source LLM evaluation, tracing, and observability by Comet. Visit
Votes	0	0
Pricing	Freemium	Freemium
Category	Llm Observability	Llm Observability
Tags	llm-observabilityopen-sourcetracingprompt-managementrag	llm-evaluationobservabilityopen-sourcetracingmonitoring
Best for	Chatbot and RAG builders Teams wanting open-source observability Privacy-sensitive projects	Teams wanting open-source eval plus tracing LLM engineers doing eval-driven development Organizations that value self-hostability
Pros	Open source under Apache 2.0 Self-hostable with no per-event cost Lightweight and fast to set up Model-agnostic with LangChain and OpenAI support Free cloud tier for low volumes	Full platform is Apache-2.0 and free to self-host Combines tracing and evaluation in one tool LLM-as-a-judge and many automated metrics Fast-growing, widely adopted open-source project Integrates with Comet's ML ecosystem
Cons	Free cloud tier capped at limited daily events Lighter feature set than enterprise LLMOps suites Smaller team and community than larger platforms Advanced analytics may require paid plans Self-hosting still requires operational effort	Crowded, competitive category Self-hosting requires running infrastructure Managed cloud limits (spans, seats) on lower tiers Evaluation quality depends on judge configuration Deep value tied to adopting the workflow

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