> For the complete documentation index, see [llms.txt](https://book.character.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.character.ai/character-guide/character-attributes/avatar.md).

# Avatar

**Avatar** *The avatar image will be used in combination with the name and other elements to make your Character visually interesting and unique.*

{% hint style="info" %}
The avatar can be in a variety of formats (png, gif, jpeg) and ideally be a square aspect ratio image that is 512x512.
{% endhint %}

The avatar you upload will be cropped into a circle in chat contexts (left) and shown as an uncropped square image on the home screen when in a character information card form (right). 

![](/files/huYbPA6SFrNGtWrmAf41)![](/files/ikCoabCNsygnjQ4uDJr4)

{% hint style="warning" %}
The avatar you upload will be run through moderation filters, and will be denied if it does not meet our guidelines. 
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://book.character.ai/character-guide/character-attributes/avatar.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.