---
description: Understand the core concepts behind AI Search, including indexing, querying, and search modes.
title: Concepts
image: https://developers.cloudflare.com/og-docs.png
---

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> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/ai-search/llms.txt  
> Use this file to discover all available pages before exploring further.

# Concepts

Last updated Apr 20, 2026|Copy as Markdown|[View as Markdown](https://developers.cloudflare.com/ai-search/concepts/index.md)|[Agent setup](https://developers.cloudflare.com/agent-setup/)

* [How AI Search works](https://developers.cloudflare.com/ai-search/concepts/how-ai-search-works/)
* [Namespaces](https://developers.cloudflare.com/ai-search/concepts/namespaces/)
* [Search modes](https://developers.cloudflare.com/ai-search/concepts/search-modes/)

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## On this page

[![](https://developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://developers.cloudflare.com/)

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