> ## Documentation Index
> Fetch the complete documentation index at: https://docs.galileo.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Luna Studio

> Choose the Luna Studio UI or SDK path for building, training, and deploying custom Luna metrics.

<img className="block dark:hidden h-10 my-6" src="https://mintcdn.com/v2galileo/-aQkdd7oOglUYIo1/images/luna-studio/logo/light.svg?fit=max&auto=format&n=-aQkdd7oOglUYIo1&q=85&s=a8a1276bee8a3f1dc826abf741a653bc" alt="Luna Studio" noZoom width="268" height="48" data-path="images/luna-studio/logo/light.svg" />

<img className="hidden dark:block h-10 my-6" src="https://mintcdn.com/v2galileo/-aQkdd7oOglUYIo1/images/luna-studio/logo/dark.svg?fit=max&auto=format&n=-aQkdd7oOglUYIo1&q=85&s=939c66e0d3da62470864bd977bc6f1c5" alt="Luna Studio" noZoom width="268" height="48" data-path="images/luna-studio/logo/dark.svg" />

Luna Studio is Galileo's end-to-end environment for creating custom evaluation metrics tuned to your AI system. Use the **UI** when you want a guided workflow in the web app, or use the **SDK** when you want to generate data, train, evaluate, and deploy metrics in code.

<Note>
  **Enterprise tier and your own deployment.** Luna Studio is part of the enterprise tier of Galileo and is deployed by Galileo into your own cluster or cloud. See [Availability and deployment](/luna-studio/ui/availability), or [contact
  us](https://galileo.ai/contact-sales) to get started.
</Note>

## Choose your path

<CardGroup cols={2}>
  <Card title="Luna Studio UI" icon="wand-magic-sparkles" href="/luna-studio/ui/index">
    Use the web app to configure integrations, create projects, build training runs, and register metrics with a guided workflow.
  </Card>

  <Card title="Luna Studio SDK" icon="square-terminal" href="/luna-studio/sdk/overview">
    Use Python and YAML configuration to generate data, fine-tune Luna metrics, evaluate outputs, and deploy them to Galileo.
  </Card>
</CardGroup>

## What each section covers

### UI

If you have the UI deployed to your org, you can use the web application to configure integrations, create projects, build training runs, and register metrics with a guided workflow.

### SDK

If you have the SDK installed in your org, you can use the Python package to generate data, fine-tune Luna metrics, evaluate outputs, and deploy them to Galileo.

## Start here

<CardGroup cols={2}>
  <Card title="UI quickstart" icon="rocket" href="/luna-studio/ui/quickstart">
    Follow the guided product flow from setup to a registered metric in the Luna Studio web app.
  </Card>

  <Card title="SDK overview" icon="book-open" href="/luna-studio/sdk/overview">
    Start with the code-first workflow for training and deploying a Luna metric with the SDK.
  </Card>
</CardGroup>

## Where to go next

* Want the guided product workflow? Start with the [Luna Studio UI overview](/luna-studio/ui/index).
* Prefer a code-first path? Start with the [Luna Studio SDK overview](/luna-studio/sdk/overview).
* Need deployment details? Read [Availability and deployment](/luna-studio/ui/availability).
* Looking for troubleshooting help? Check the [UI troubleshooting guide](/luna-studio/ui/reference/troubleshooting).