# Source: https://docs.tavus.io/sections/models.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.

# Models

## Raven: Perception Model

Raven is the first contextual perception system that **enables machines to see, reason, and understand like humans in real-time**, interpreting emotions, body language, and environmental context to enhance conversation.

### Key Features

<CardGroup cols={2}>
  <Card title="Emotional Intelligence" icon="face-smile">
    Interprets emotion, intent, and expression with human-like nuance.
  </Card>

  <Card title="Ambient Awareness" icon="gear">
    Continuously detects presence and environmental changes that provide real-time context to the conversations.
  </Card>

  <Card title="Callout Key Events" icon="eye">
    Watches for specified gestures, objects, or behaviors and triggers functions.
  </Card>

  <Card title="Multi-channel Processing" icon="face-viewfinder">
    Sees and processes screensharing and other visual inputs to ensure complete understanding.
  </Card>
</CardGroup>

## Sparrow: Conversational Turn-Taking Model

Sparrow is a transformer-based model built for **dynamic, natural conversations, understanding tone, rhythm, and subtle cues** to adapt in real time with human-like fluidity.

### Key Features

<CardGroup cols={2}>
  <Card title="Conversational Awareness" icon="waveform-lines">
    Understands meaning, tone, and timing to respond naturally like a human.
  </Card>

  <Card title="Turn Sensitivity" icon="comments">
    Understands human speech rhythm, capturing cues and pauses for natural interactions.
  </Card>

  <Card title="Heuristics & ML" icon="chart-network">
    Adapts to speaking styles and conversation patterns using heuristics and machine learning.
  </Card>

  <Card title="Optimized Latency" icon="rocket-launch">
    Delivers ultra-fast response times for seamless real-time conversation.
  </Card>
</CardGroup>

## Phoenix: Replica Rendering Model

Phoenix is built on a Gaussian diffusion model that generates **lifelike digital replicas with natural facial movements, micro-expressions, and real-time emotional responses**.

### Key Features

<CardGroup cols={2}>
  <Card title="Full-Face Animation" icon="face-smile">
    Dynamically generates full-face expressions, micro-movements, and emotional shifts in real time.
  </Card>

  <Card title="True Realism" icon="stars">
    Achieves the highest fidelity by rendering with pristine identity preservation.
  </Card>

  <Card title="Driven Emotion" icon="masks-theater">
    Adjusts expressions based on context, tone, and conversational cues.
  </Card>
</CardGroup>