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

# Playground Overview

> Interactive testing environment for the Theo API.

The Playground at [hitheo.ai/playground](https://hitheo.ai/playground) is an interactive environment for testing Theo's capabilities.

## Features

* **Mode selector** — switch between auto, fast, think, code, research, image, roast
* **Skill activation** — enable/disable installed skills
* **Real-time streaming** — see tokens as they're generated
* **Tool execution** — watch tools being called in real-time
* **Artifact viewer** — preview generated images, code, and documents
* **Cost tracking** — see per-request cost in real-time
* **Model info** — see which model was selected and why