> ## 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

> Generate high-quality async videos from a script and a replica—separate from real-time CVI.

Tavus **Video Generation** is a separate product from the [Conversational Video Interface](/sections/conversational-video-interface/overview-cvi). It is designed solely for generating AI videos - you provide a script and a Replica, and Tavus produces a finished video. There is no real-time interaction involved.

**At a glance**

* **What it does** — Turn a **written script** plus a **[replica](/sections/replica/overview)** into a **finished, downloadable video** (batch-style, not a live call).
* **Replicas** — Use **[stock replicas](/sections/replica/stock-replicas)** out of the box or **[train a custom replica](/sections/replica/which-training-path)** for your own likeness.
* **Next step** — [Video quickstart](/sections/video/quickstart) or the <a href="https://platform.tavus.io/" target="_blank">Developer Portal</a>.

## Key features

<CardGroup cols={2}>
  <Card title="Stock & custom replicas" icon="bolt">
    Get started instantly with stock replicas, or train a custom replica with just two minutes of video.
  </Card>

  <Card title="Photo-realistic replicas" icon="person">
    In-house models deliver lifelike results using advanced techniques for both stock and custom replicas.
  </Card>

  <Card title="Languages" icon="language">
    Generate videos in **42** supported languages with your real voice.
  </Card>

  <Card title="Bring Your Own Audio" icon="waveform-lines">
    Use default TTS or upload your own audio for video generation.
  </Card>
</CardGroup>

<Note>
  Token usage is based on video duration. Output can vary slightly even with the same script and Replica.
</Note>

## Getting Started

You can create AI generated videos using the <a href="https://platform.tavus.io/" target="_blank">Developer Portal</a> or by following the [Video quickstart](/sections/video/quickstart).