Lunary
LLM engineering platform for building reliable AI Agents
What is Lunary? Complete Overview
Lunary is an LLM engineering platform designed to help teams build reliable AI applications with confidence. It offers non-stop optimization, collaborative prompt iteration, observability, prompt management, evaluations, and product analytics. The platform is built for every LLM use-case, whether you're developing internal tools or customer-facing applications. With over 5000 teams using Lunary, it provides tools to monitor LLM performance in real-time, understand user interactions, and deliver reliable AI experiences. Lunary is SOC 2 Type II and ISO 27001 certified, ensuring enterprise-grade security and compliance.
Lunary Interface & Screenshots

Lunary Official screenshot of the tool interface
What Can Lunary Do? Key Features
Observability
Lunary provides comprehensive observability for your LLM applications, allowing you to monitor performance, track errors, and analyze interactions in real-time. This feature helps you identify and resolve issues quickly, ensuring smooth operation of your AI agents.
Prompt Management
Easily create, version, and manage prompts with Lunary's collaborative prompt iteration tools. This feature supports A/B testing and allows non-technical team members to contribute, ensuring your prompts are optimized for performance.
Analytics
Track and analyze the performance and costs of your GenAI projects with detailed analytics. Understand how users interact with your app, analyze frequent topics, and measure user satisfaction to continuously improve your AI applications.
Agent Tracing
Debug LLM agents by logging all prompts and results. Lunary provides traces and error stack traces, instant search, and filters to help you understand how agents are performing in production and catch errors early.
PII Masking
Safeguard user personal information with PII masking, ensuring compliance with GDPR and other data protection regulations. This feature helps you avoid legal headaches while maintaining the integrity of your data.
Custom Dashboards
Create custom dashboards to visualize key metrics and insights tailored to your specific needs. This feature allows you to monitor what matters most to your team and make data-driven decisions.
Feedback Tracking
Collect and analyze feedback from users to continuously improve your AI applications. This feature helps you understand user satisfaction and identify areas for enhancement.
Topic Classification
Group chats into topics to uncover trends and understand user interactions better. This feature provides valuable insights into what your users are discussing and how your AI is performing.
Best Lunary Use Cases & Applications
Customer Support Chatbots
Build customer-facing chatbots that understand your documentation and provide accurate responses. Lunary helps you track satisfaction and improve continuously by analyzing user interactions and feedback.
Internal Knowledge Management
Help your team access company knowledge and automate workflows faster. Lunary allows you to monitor usage and improve from real feedback, ensuring your internal tools are effective and efficient.
Autonomous Agents
Deploy autonomous agents that execute complex tasks. Lunary's monitoring tools help you track performance in real-time and catch errors early, ensuring reliable operation.
Sales and Reporting
Use Lunary to analyze data and generate reports, including sales metrics, user growth, and key achievements. The platform's analytics tools provide valuable insights for decision-making.
How to Use Lunary: Step-by-Step Guide
Sign up for a free account or schedule a demo to explore Lunary's features. The platform offers a quick start guide to help you get started in minutes.
Integrate Lunary into your existing LLM workflow using the provided SDKs. The platform supports seamless integration with OpenAI, LangChain, and other frameworks.
Start monitoring your LLM applications by logging prompts and results. Use the observability tools to track performance and identify issues.
Optimize your prompts using the collaborative prompt iteration tools. Experiment with different versions and conduct A/B tests to find the most effective prompts.
Analyze the data collected by Lunary to gain insights into user interactions and LLM performance. Use the custom dashboards to visualize key metrics and make data-driven decisions.
Continuously improve your AI applications based on the insights and feedback gathered. Lunary's tools help you refine your models and deliver better user experiences.
Lunary Pros and Cons: Honest Review
Pros
Considerations
Is Lunary Worth It? FAQ & Reviews
If you exceed the limit 2 days in a row, your account will be limited but the data will still be captured. That means exceptional bursts are fine. You'll regain full access once you upgrade your account or stay below the limit for 3 consecutive days.
Our data is hosted in Europe and compliant with GDPR. We can also accommodate on-premises hosting. Read more about data security.
You can cancel your subscription by clicking on the 'Customer Portal' button in the billing section of the dashboard.
Yes, we offer discounts for students, non-profits, and open-source projects without commercial use. Please contact us with details about your project to claim a discount.
Yes, we can accommodate quarterly billing. Please contact us to discuss your needs.
For companies and individuals building solutions for clients, we offer flat and predictable plans starting from $US 400/month. Create and share projects for each client. Reach out to get a precise quote.
You can self-host the Community Edition for free. The Enterprise Edition, with support for Docker, Kubernetes, and more, is paid. Check the pricing page for more information.
Yes, if you are migrating from the cloud-hosted version to a paid self-hosted plan, contact us and we will help you migrate your data.