---

name: infinitalk-video-to-video description: "Infinitalk | Video to Video. Animate video with audio-driven lip sync and motion. Triggers: talking head, lip sync, video animation, audio to video, infinitalk" allowed-tools: Bash(curl *), WebFetch

Infinitalk | Video to Video

Animate a video by syncing it with audio input, enabling lip sync and facial animation. Supports optional mask images for specifying which person to animate, and configurable resolution.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "infinitalk-video-to-video",
    "version": "0.0.1",
    "input": {
      "video": "https://example.com/person-talking.mp4",
      "audio": "https://example.com/speech.mp3",
      "prompt": "A person speaking naturally with clear lip movements",
      "resolution": "720p"
    }
  }'

Parameters

Parameter	Type	Default	Description
audio	string	-	The URL of the audio file.
mask_image	string	-	Optional mask image to specify the person in the video to animate.
prompt	string	-	The positive prompt for the generation.
resolution	string	720p	Resolution of the video to generate. Options: 480p, 720p
seed	integer	-1	The random seed to use for the generation. -1 means a random seed will be used.
video	string	-	The video for generating the output.

Examples

Basic video lip sync:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "infinitalk-video-to-video",
    "version": "0.0.1",
    "input": {
      "video": "https://example.com/speaker.mp4",
      "audio": "https://example.com/voiceover.mp3"
    }
  }'

With mask and specific seed:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "infinitalk-video-to-video",
    "version": "0.0.1",
    "input": {
      "video": "https://example.com/group-scene.mp4",
      "audio": "https://example.com/dialogue.wav",
      "mask_image": "https://example.com/person-mask.png",
      "prompt": "Natural conversation with expressive facial movements",
      "resolution": "720p",
      "seed": 42
    }
  }'

Related Models

• Infinitalk | Image to Video - Animate a static image with audio
• Sync | Lipsync | v2 | Pro - Professional lip sync solution
• Bytedance | Omnihuman v1.5 - Full body animation from audio

Documentation

• each::labs Docs
• API Reference