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Lunary

Lunary

Lunary

Main Task


Lunary is an open-source AI developer platform to monitor, manage, and improve LLM apps. It performs essential functions like logs and debugging of LLM agents, enabling developers to trace errors and label data for fine-tuning.

Lunary also provides a cost monitoring feature, segmented by user and model; this aids in optimizing costs. With its benchmarking feature, you can experiment with prompts and models to find the best performing ones.

Lunary enables recording of user conversations, helping identify gaps in your chatbot's knowledge. It also has a provision to help you create templates and collaborate on prompts with non-technical teammates.

Other notable features include hosting for your data with secure self-host options and compliances to ensure maximum security. Furthermore, it provides an open-source community for developers, live tail features, an efficient search function, label data, prompts and a complete API.

Lunary also provides alerts for outlier results and errors.

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Pros & Cons


  • Open-source platform
    LLM apps monitoring
    LLM apps management
    LLM apps improvement
    Precise logs and debugging
    Error tracing
    Data labelling for fine-tuning
    Cost monitoring segmented by user, model
    Benchmarking for models, prompts
    User conversations recording
    Chatbot knowledge gap identification
    Non-technical teammates collaboration
    Text templates creation
    Secure data hosting
    Self-host options available
    Compliances for maximum security
    Open-source community for developers
    Live tail features
    Efficient search function
    Complete API
    Outlier results alerts
    Error alerts
    Captures user feedback
    Dev-friendly frontend integration
    Source-code cleaner
    Versioning feature
    A/B testing module
    Easy to integrate
    Track error stacks
    Auto cost & token calculations
    No-code benchmarking
    Test open-source models
    Prompt Versioning
    Alerts for outlier results
    Instant search and filters
    Data tagging for easy filter
    Frontend SDK for chat tracking
    20+ model playgrounds
    Python compatible
    Data hosted in EU
    Self-hostable options
    Evaluate prompt efficiency
    Public API available
    Replays entire chats
    Agent tracing feature
    Feedback tracking capability
    Supports LangChain


  • Limited to LLM apps
    No multi-language support
    No mobile app
    No offline functionality
    No real-time collaboration
    No local installation
    Data center in EU only
    ISO 27001 certification pending
    No SLA for service uptime
    Limited free usage

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