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

# Evaluations

> Available metrics, tests and how to customize them.

Evaluations are a core feature of the Evidently library. It offers both a catalog of 100+ evals and a framework to easily configure yours. Before exploring, make sure know the core workflow: try an example for [LLMs](docs/quickstart_llm) or [ML](docs/quickstart_ml).

<CardGroup cols={3}>
  <Card title="All Descriptors" icon="table-list" href="all_descriptors">
    Text and LLM evals are here.
  </Card>

  <Card title="All Metrics" icon="chart-simple" href="all_metrics">
    All data and ML evals.
  </Card>

  <Card title="All Presets" icon="files" href="all_presets">
    Pre-built evaluation templates.
  </Card>
</CardGroup>

## Popular links

<CardGroup cols={2}>
  <Card title="LLM judges" icon="sparkles" href="customize_llm_judge">
    How to create a custom LLM judge.
  </Card>

  <Card title="Data Drift" icon="chart-waterfall" href="customize_data_drift">
    How to customize data drift detection.
  </Card>
</CardGroup>