Sync.so/Lipsync-2

lipsync-2

Zero-shot video lip sync AI instantly matches spoken audio to mouth movements in live-action, animation, or AI-generated clips—no training needed, preserves speaker style, supports 4K, and enables multilingual dubbing and post-production dialogue editing.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v7/video-fusion/lip-sync

API Authentication

Authentication requires a valid API key included in the request. Generate and manage your API keys from your developer dashboard. Include the key in the key parameter for all API requests.

Integration Examples

Production-ready code samples for API integration

{
  "model_id": "lipsync-2",
  "init_video": "https://pub-3626123a908346a7a8be8d9295f44e26.r2.dev/livewire-tmp/NSf4Gh00oe0KPbn7XLrk06LuSTdFZd-metaaEFMdW5IRndiVU1oN2NWUlpZSmRMeXFMSzI4ZE9CaEpYMEVFWmxlai5tcDQ=-.mp4",
  "init_audio": "https://pub-3626123a908346a7a8be8d9295f44e26.r2.dev/livewire-tmp/BM6Y5p6QrRQ62On47G2xJIqTAEol2E-metaYXVkaW9fN2FlYmM3MDgtNDA4ZS00OWE1LWFjODYtYjkxOGJlMGQwNDRhXzEwLndhdg==-.wav",
  "key": "YOUR_API_KEY"
}

SDKs

Official SDKs

Production-ready SDKs and client libraries for all major programming languages

JavaScript

Python

PHP

API Parameters

Technical specifications for API request parameters.

Field Name	Parameter	Technical Description
model_id	`model_id`	Model
reference video	`init_video`	reference video
reference audio	`init_audio`	reference audio