# AI Search
Help your users find the information they need faster with powerful knowledge discovery tools for your published content
### Choose your site’s search experience
GitBook sites offer different search experiences depending on what you want for your users:
* **Keyword search** – A standard search experience based on keywords. Automatically enabled on all sites.
* **GitBook AI search** – Users get short answers to questions directly from the search box.
* **GitBook Assistant** – Users get an advanced, interactive chat experience with GitBook's AI agent. Head to [GitBook Assistant](https://gitbook-v2-q67etdj25-gitbook.vercel.app/url/gitbook.com/docs/publishing-documentation/gitbook-ai-assistant) to learn more.
To choose your site’s search experience, open your site’s dashboard, navigate to the **Settings** page and choose **AI & MCP** from the menu on the left. Here you can choose your preferred experience.
Choose the search experience you want in your published docs
{% hint style="warning" %}
When GitBook Assistant is enabled, AI search is disabled. Standard keyword searches will always provide the results in the search bar no matter which experience you choose.
{% endhint %}
## Searching published documentation
****Users can open the **Ask or search…** bar by pressing ⌘ + K on Mac or Ctrl + K on PC.
Your users can search for keywords within your docs site and jump quickly to specific pages or page sections across your entire site.
If your docs site has multiple [sections](https://gitbook-v2-q67etdj25-gitbook.vercel.app/url/gitbook.com/docs/publishing-documentation/site-structure/site-sections), the search results will contain pages from all of these sections so that you users can jump straight to the page they need.
## GitBook AI search
{% hint style="info" %}
This feature is available on the [Ultimate site plan](https://www.gitbook.com/pricing).
{% endhint %}
GitBook AI search offers basic AI-powered answers in the **Search and find…** bar of your site. It’s trained on the content of your docs site, but cannot pull in information from external sources.
### Using GitBook AI search
If you have enabled GitBook AI search from your site’s settings page, your users can access it by asking a question directly in the **Ask or search…** bar at the top of the page.
They can open this by clicking it directly, or by pressing ⌘ + K on a Mac or Ctrl + K on a PC.
As well as a summarized answer, below your users will also see an expandable section that shows the sources that GitBook AI used to create its answer, plus related questions you can click as a follow-up.
{% hint style="warning" %}
GitBook AI does not work across individual published spaces on different [docs sites](https://gitbook-v2-q67etdj25-gitbook.vercel.app/url/gitbook.com/docs/publishing-documentation/publish-a-docs-site).
Multi-space search is only available when viewing published spaces that live as [site sections](https://gitbook-v2-q67etdj25-gitbook.vercel.app/url/gitbook.com/docs/publishing-documentation/site-structure/site-sections) within the same site.
{% endhint %}
* Press ⌘ + I on Mac or Ctrl + I on PC
* Click the **GitBook Assistant**  button next to the **Ask or search…** bar
* Type a question into the **Ask or search…** bar and choose the ‘Ask…’ option at the top of the menu.
