Lunary
llm-observability
Open-source LLM observability and prompt management for chatbots and RAG
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Lunary vs Opik
Compare Lunary and Opik side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Opik
llm-observability
Open-source LLM evaluation, tracing, and observability by Comet.
Pricing
Free plan
Rating
—
Votes
0
Feature comparison
Feature
Lunary
Opik
Category
llm-observability
llm-observability
Pricing
Free plan
Free plan
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Lunary pros and cons
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 capped at limited daily events
Lighter feature set than enterprise LLMOps suites
Smaller team and community than larger platforms
Opik pros and cons
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
Crowded, competitive category
Self-hosting requires running infrastructure
Managed cloud limits (spans, seats) on lower tiers
Which one should you choose?
Best overall signal
Lunary
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Lunary
Selected using free-plan availability and engagement signals.
Best for
Lunary
- chatbot observability
- RAG monitoring
- open-source LLMOps
- Chatbot and RAG builders
- Teams wanting open-source observability
Opik
- LLM evaluation
- agent tracing
- prompt management
- production LLM monitoring
- Teams wanting open-source eval plus tracing
FAQ
Is Lunary better than Opik?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Lunary and Opik offer a free plan based on current Toolglade data.