# Settings

Click **Settings** in the header or open **Account → Settings** at the bottom left. The window contains **General**, **Chat settings**, **Account** and **Archive**.

```{include} ../_includes/ui-settings.md
```

## General

```{include} ../_includes/ui-general-settings.md
```

| Setting | Effect |
| --- | --- |
| **Design** | Switches between **Light** and **Dark**. |
| **Language** | Sets the interface to German or English. |
| **Font size** | Changes the size of chat text from 12 to 24 px. |
| **Font** | Selects the system font, Arial, Georgia or Monospace. |

These display options take effect immediately. The interface language is independent of the language of your messages and of [speech translation](voice-translation.md).

The HTML views in this documentation initially follow the documentation's theme. You can also try the theme selector inside an embedded view.

## Chat settings

```{include} ../_includes/ui-chat-settings.md
```

| Field | Purpose |
| --- | --- |
| **Temperature** | Controls variation in model responses. Lower values usually produce more consistent responses. |
| **Top-p** | Limits the selection of possible next tokens according to their probability. |
| **Maximum output tokens** | Limits the generated response length; the model may impose additional limits. |
| **System Prompt** | Defines general instructions such as role, tone or output format. |

Confirm changes with **Save**. Values are saved as personal defaults and affect future requests; existing responses are not rewritten. The effect of individual parameters depends on the model.

Find your library of reusable system instructions under [Prompts](prompts.md) in the sidebar. It also shows which saved version is active.

## Account

The **Account** tab shows your username and email address. **Change email** and **Change password** open the corresponding account dialogs.

The account menu at the bottom of the sidebar also contains **Help**, **My files**, **Archived chats**, **Delete history** and **Log out**. Administration links appear only for accounts with the necessary permissions.

```{include} ../_includes/ui-account.md
```

## Archive

Under **Archive**, connect a GitLab account and select a repository for versioned chat records. Setup and the archive action below a response are explained in [Document AI use with GitLab](ai-quotes-with-git.md).

[Next: Computer Vision](use-images.md)