> ## 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.

# Introduction

> Leverage Tavus tools and guides to give your AI Agent real-time human-like perception and presence, bringing the human layer to AI.

<Frame>
  <img src="https://mintcdn.com/tavus/6mGnBiGSIfaW2w6g/images/tavus_cvi_pipeline_with_photos.png?fit=max&auto=format&n=6mGnBiGSIfaW2w6g&q=85&s=423b8592af39d8cd14c371acc42d520a" alt="" width="1548" height="598" data-path="images/tavus_cvi_pipeline_with_photos.png" />
</Frame>

Tavus uses the **Conversational Video Interface (CVI)** as its **end-to-end pipeline** to bring the human layer to AI. CVI combines a **Persona**, which defines the AI’s behavior through layers like perception, turn-taking, and speech recognition, with a **Replica**, a lifelike digital human that brings the conversation to life visually.

## Developer Guides

Follow our in-depth technical resources to help you build, customize, and integrate with Tavus:

<CardGroup cols={3}>
  <Card title="Conversational Video Interface" icon="messages" href="/sections/conversational-video-interface/overview-cvi">
    Learn how Tavus turns AI into conversational video.
  </Card>

  <Card title="Persona" icon="user-gear" href="/sections/conversational-video-interface/persona/overview">
    Configure the Persona's layer to define the AI's behavior.
  </Card>

  <Card title="Replica" icon="user-group" href="/sections/replica/overview">
    Build hyper-realistic digital human using Phoenix.
  </Card>
</CardGroup>

## Conversational Use Cases

<CardGroup cols={2}>
  <Card title="Sales Coach" href="/sections/conversational-video-interface/conversation/usecases/sales-coach" img="https://mintcdn.com/tavus/n1GjuWL0lBZS5HZU/images/celine.png?fit=max&auto=format&n=n1GjuWL0lBZS5HZU&q=85&s=a4972a7d8d2f7c8f3d041f066f6e9c75" width="1920" height="1080" data-path="images/celine.png">
    Offer scalable 1:1 sales coaching.
  </Card>

  <Card title="Customer Support" href="/sections/conversational-video-interface/conversation/usecases/customer-support" img="https://mintcdn.com/tavus/n1GjuWL0lBZS5HZU/images/gloria2.png?fit=max&auto=format&n=n1GjuWL0lBZS5HZU&q=85&s=686824dd8a8494db70e8d51d015127cb" width="1920" height="1080" data-path="images/gloria2.png">
    Support users with product issues.
  </Card>

  <Card title="Interviewer" href="/sections/conversational-video-interface/conversation/usecases/interviewer" img="https://mintcdn.com/tavus/jW75mHdKfk2Vdngl/images/lucas.png?fit=max&auto=format&n=jW75mHdKfk2Vdngl&q=85&s=204729bca92b88c82799f6a825c5b1a7" width="1920" height="1080" data-path="images/lucas.png">
    Screen candidates at scale with an engaging experience.
  </Card>

  <Card title="Sales Development Rep" href="/sections/conversational-video-interface/conversation/usecases/sales-development-rep" img="https://mintcdn.com/tavus/n1GjuWL0lBZS5HZU/images/anna.png?fit=max&auto=format&n=n1GjuWL0lBZS5HZU&q=85&s=d8778303c10a8aeac45e0f997492d402" width="1920" height="1080" data-path="images/anna.png">
    Engage with Anna, the Tavus sales development rep.
  </Card>
</CardGroup>