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

# Overview

> Learn about Personal, Non-Human and Stock Replicas, and how to create your own.

## What Is a Replica?

A Replica is a hyper-realistic AI-generated video avatar created using **Phoenix**, Tavus's rendering model.

**Phoenix** is built on a Gaussian‑diffusion architecture. The most advanced version, **Phoenix-4**, delivers the highest fidelity rendering with enhanced emotional expressiveness. **Phoenix-3** is currently available for creating custom replicas.

With just 2 minutes of training video, **Phoenix-3** can accurately reproduce a person's appearance, voice, expressions, and movements with studio-quality fidelity, precise lip sync, and consistent identity preservation. Phoenix-4 is available through select [stock replicas](/sections/replica/stock-replicas).

<Tip>
  For guidelines and best practices on replica training videos, see the [Replica Training](/sections/replica/replica-training) article.
</Tip>

## Key Features

<CardGroup cols={3}>
  <Card title="Realistic Face Cloning" icon="face-smile">
    Replicates a person’s look, expressions, and speaking style.
  </Card>

  <Card title="Multilingual Support" icon="globe">
    Enables natural conversations in up to 30 languages with accent preservation.
  </Card>

  <Card title="Reusable" icon="repeat">
    Trained Replicas can be reused without re-recording.
  </Card>
</CardGroup>

## Replica Types

| Type          | Description                                                                    | Requirements         |
| ------------- | ------------------------------------------------------------------------------ | -------------------- |
| **Personal**  | A digital human modeled after a real person’s facial appearance and voice.     | Verbal consent video |
| **Non-Human** | A digital human modeled after an AI-generated character.                       | No consent required  |
| **Stock**     | A prebuilt, professional digital presenter optimized for natural conversation. | No consent required  |

## Getting Started

You can create a personal or non-human replica using the <a href="https://platform.tavus.io/" target="_blank">Developer Portal</a> or by following the steps in the [Quickstart Guide](/sections/replica/quickstart).

<Note>
  Creating a Personal Replica is **only available** on the Starter, Growth, and Enterprise plans.
</Note>


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