# Source: https://docs.tavus.io/sections/introduction.md

> ## 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.

<Info>
  Looking for PALs? They're Tavus's lifelike, emotionally intelligent AI humans—ready to use out of the box. You can learn more about them at the [PALs Help Center](https://help.tavus.io).
</Info>

***

<Frame>
    <img src="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=0a3e7821ec8b4b76148e9779069b3639" alt="" data-og-width="3604" width="3604" data-og-height="1516" height="1516" data-path="images/full-pipeline.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=280&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=a0a76ecfc0afbbd5c4836c82df4812a1 280w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=560&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=0a8c438a6533917f1f70e79cc41a8de6 560w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=840&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=0ee493e3b51d09fd4507ff953a058411 840w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=1100&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=b39b45e0547c2a07aa226b85f6b7bdd3 1100w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=1650&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=58863ec6ad13b8168e480d9df35fc62b 1650w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/full-pipeline.png?w=2500&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=1871d5f568513b7a6a67b4373c1b99a8 2500w" />
</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={3}>
  <Card title="Tavus Researcher" img="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=f3320169df7d5aed978c504c5e47c7c4" href="/sections/conversational-video-interface/conversation/usecases/tavus-researcher" data-og-width="560" width="560" data-og-height="516" height="516" data-path="images/charlie.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=280&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=19343ffdda8b9f75f65e21fba6b82a0f 280w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=560&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=e4fd121deb6cac3fee691e44a911db73 560w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=840&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=e5c4f8a343329d259b053dbab06bac0a 840w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=1100&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=2b837e4790b9c1398c1c373774d09be1 1100w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=1650&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=3bfe996f3e049b325c0efb30372a4a27 1650w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/charlie.png?w=2500&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=b55d2276e753abaa911bfc0357ef44f3 2500w">
    A friendly AI human who is also a researcher at Tavus.
  </Card>

  <Card title="AI Interviewer" img="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=56bef30798f80fad1c95e19e4d759824" href="/sections/conversational-video-interface/conversation/usecases/ai-interviewer" data-og-width="560" width="560" data-og-height="516" height="516" data-path="images/mary.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=280&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=431d2200f26b85ce275955c98d407d96 280w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=560&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=c1cb26322e9c8f14570e41b2c7876d15 560w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=840&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=587708571d00984b429a9c4764f0d007 840w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=1100&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=2f8d2273671e0f4d8e3eadb9bc127107 1100w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=1650&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=faec56a31804a2ad390b9b360083cc37 1650w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/mary.png?w=2500&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=eda592cac25bad6bb8d9e6d4866d1c14 2500w">
    Screen candidates at scale with an engaging experience.
  </Card>

  <Card title="History Teacher" img="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=a853de9babff2636684aafb367b1e8ef" href="/sections/conversational-video-interface/conversation/usecases/history-teacher" data-og-width="560" width="560" data-og-height="516" height="516" data-path="images/ht.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=280&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=93544fd536d48896fa3cde4c9d447851 280w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=560&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=1411d2272dccaf21227cc2544db7d08b 560w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=840&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=49fed02a7f820053d24dc3b5d11e6cc6 840w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=1100&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=c42007dda2c94ea26e1e1eeacaaf6d7e 1100w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=1650&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=e47d9ed4bf930746aa67158efdb55a92 1650w, https://mintcdn.com/tavus/yrvSX4NJrNH338WQ/images/ht.png?w=2500&fit=max&auto=format&n=yrvSX4NJrNH338WQ&q=85&s=e8c4c56fd7480a8d8df4ca0a9e353545 2500w">
    Offer personalized lessons tailored to your learning style.
  </Card>

  <Card title="Sales Coach" img="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=0524eef34436ade24e75f896e629d607" href="/sections/conversational-video-interface/conversation/usecases/sales-coach" data-og-width="560" width="560" data-og-height="516" height="516" data-path="images/sabrina.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=280&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=8c52b7caf0d95b0d9dd0eb06321b9a99 280w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=560&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=ac1686308c6f9a147250532b8d3b0e60 560w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=840&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=73dfbac69e210eb20b9b3484b5bfc5b8 840w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=1100&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=e3b4fb4dcbdde36cc7d088ffc85b35ad 1100w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=1650&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=31a1aa75002d147e2563b28ade4e3ebb 1650w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/sabrina.png?w=2500&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=e5a514e482540a1b1c434fe5cbc99317 2500w">
    Offer scalable 1:1 sales coaching.
  </Card>

  <Card title="Health Care Consultant" img="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=563464ee962ea760f3f96a9979e92eea" href="/sections/conversational-video-interface/conversation/usecases/health-care" data-og-width="560" width="560" data-og-height="516" height="516" data-path="images/raj.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=280&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=b0b4692e194d83c7ac3dc81b73f64b94 280w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=560&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=9f872a0eaabccf444033d1c3fb31a0aa 560w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=840&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=21195545f1c16513e0132b63184e5ec7 840w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=1100&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=bc18e4c1e85a68a3357e449e13becc62 1100w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=1650&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=17deccebcdaa91ad963a8fa39762f946 1650w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/raj.png?w=2500&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=7c4ac272adf302b7b62defcd91fa6a0c 2500w">
    Offer consultations for general health concerns.
  </Card>

  <Card title="Customer Service Agent" img="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=0e2f6c382858523be3c0fabc42d08886" href="/sections/conversational-video-interface/conversation/usecases/customer-service" data-og-width="842" width="842" data-og-height="775" height="775" data-path="images/stock-replica/helen.png" data-optimize="true" data-opv="3" srcset="https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=280&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=27bc52ef40af7e23a20dfc5e678b970e 280w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=560&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=7f144a8b7b5f81bc3decbf6193db701f 560w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=840&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=4e4107293201158c7c34e17c4ad38c2c 840w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=1100&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=65fb06d1950483f1eefb8bdf5dae1130 1100w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=1650&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=78e3a9acc0ff7eaa2b031bfa1789b62c 1650w, https://mintcdn.com/tavus/_cI_e0wGUkj7b2SY/images/stock-replica/helen.png?w=2500&fit=max&auto=format&n=_cI_e0wGUkj7b2SY&q=85&s=de2088ce4ecc2339684460984ff7046c 2500w">
    Support users with product issues.
  </Card>
</CardGroup>