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

# Welcome to SpatialReal Documentation

SpatialReal is the next-generation AI infrastructure for empathetic human-AI interactions. We build **real-time**, **high-fidelity**, and **cost-effective** digital avatar interactions through on-device rendering technology.

<Frame>
  <img src="https://mintcdn.com/spatialwalk-6179c111/wCBKRztgNfKgzyVo/images/flow.png?fit=max&auto=format&n=wCBKRztgNfKgzyVo&q=85&s=f1ff8935c8c99e92b7b99555de514fa1" alt="pipeline" width="3300" height="1586" data-path="images/flow.png" />
</Frame>

<p style={{ fontSize: '0.875rem', opacity: 0.75, marginTop: 8 }}>
  In the pipeline diagram: ASR = Automatic Speech Recognition, LLM = Large Language Model, TTS = Text-to-Speech, S2S = Speech-to-Speech (e.g. Gemini Live).
</p>

## Why SpatialReal?

Traditional digital avatar solutions force painful trade-offs between cost, visual quality, and real-time performance. SpatialReal solves this trilemma:

| Metric            | Traditional Cloud Rendering  | SpatialReal On-Device          |
| ----------------- | ---------------------------- | ------------------------------ |
| **Bandwidth**     | 1-2 MB/s (Video Stream)      | 10-20 KB/s (Driver Data)       |
| **Cost**          | High GPU rental costs        | Ultra-low edge compute         |
| **Latency**       | > 3s                         | \< 1.5s                        |
| **Compatibility** | High-speed network dependent | 99% of Android/iOS/Web devices |

## Use Cases

* **Online Education** - Immersive 1-on-1 tutoring with precise lip-sync for language learning and K12
* **Recruitment & Training** - 7x24h AI interviewers and roleplay training simulations
* **Customer Service** - Brand ambassadors with visual eye contact that builds emotional connection

## Creating an account

### Sign Up

Visit [SpatialReal Studio](https://app.spatialreal.ai/) to create your free account.

### SpatialReal Studio

[SpatialReal Studio](https://app.spatialreal.ai/) is your control center where you can:

* Free access to a large avatar library
* Manage your API keys
* Monitor your usage
* Control your subscription

## Quick Start

<CardGroup cols={2}>
  <Card title="Use LiveKit(recommended)" icon="play" href="/overview/agent">
    LiveKit is a realtime communication platform that allows you to create voice and video chat applications. Deploying your own LiveKit server is quick and easy.
  </Card>

  <Card title="Use Avatarkit SDKs" icon="key" href="/overview/speech-to-avatar">
    For when you need full control of your tech stack (e.g., custom voice bots).
  </Card>
</CardGroup>

<Card title="Start building in 5 minutes" icon="rocket" href="/overview/integration_overview" horizontal>
  Compare integration modes and start from runnable example projects.
</Card>

## About Us

Learn more about SpatialReal and our mission at [spatialreal.ai](https://www.spatialreal.ai/).