Runway Act-Two

Runway | Act-Two

Generate character animation videos driven by a reference performance. Control expression intensity, body movement, and character type for expressive video outputs.

Quick Start

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "runway-act-two",
    "version": "0.0.1",
    "input": {
      "character_uri": "https://example.com/character.jpg",
      "reference_uri": "https://example.com/performance-reference.mp4",
      "character_type": "image",
      "aspect_ratio": "1280:720",
      "expression_intensity": 3,
      "body_control": true
    }
  }'

Parameters

Output

• Type: video

Examples

Image Character Animation

{
  "model": "runway-act-two",
  "version": "0.0.1",
  "input": {
    "character_uri": "https://example.com/portrait.jpg",
    "reference_uri": "https://example.com/acting-reference.mp4",
    "character_type": "image",
    "aspect_ratio": "1280:720",
    "expression_intensity": 4,
    "body_control": true
  }
}

Video Character with Subtle Expressions

{
  "model": "runway-act-two",
  "version": "0.0.1",
  "input": {
    "character_uri": "https://example.com/character-clip.mp4",
    "reference_uri": "https://example.com/subtle-performance.mp4",
    "character_type": "video",
    "aspect_ratio": "960:960",
    "expression_intensity": 2,
    "body_control": false,
    "seed": 55
  }
}

Related Models

• Runway Gen4 Aleph - Text-to-video generation
• EchoMimic V3 - Audio-driven talking head
• Character 3 - Audio-driven character video

Documentation

• EachLabs API Docs