lipsync 1.9.0 (beta) | [video-to-video]
Sync.so's lipsync 1.9.0-beta delivers realistic lip synchronization at $0.70 per minute of video processed. Trading broad audio format flexibility for precision facial animation, this model handles duration mismatches through five sync modes: cut_off, loop, bounce, silence, and remap, solving the common problem of audio-video length conflicts that break most automated lipsync workflows.
Use Cases: Video Dubbing & Localization | Content Creator Audio Replacement | Marketing Video Personalization
At $0.70 per minute, lipsync 1.9.0-beta positions as a specialized video-to-video solution with flexible duration handling that prevents the audio cutoff issues common in fixed-length processors.
| Metric | Result | Context |
|---|
| Sync Modes | 5 duration handling options | Cut_off, loop, bounce, silence, remap address audio/video length mismatches |
| Cost per Minute | $0.70 | 1.43 minutes per $1.00 on fal |
| Input Formats | Video: MP4, MOV, WebM, M4V, GIF / Audio: MP3, OGG, WAV, M4A, AAC | Broad format support for production workflows |
| Model Versions | 3 available (1.7.1, 1.8.0, 1.9.0-beta) | Beta version with latest algorithm improvements |
| Related Endpoints | Sync Lipsync 2.0, Sync Lipsync Pro | Next-gen and performance-optimized variants |
Duration-Flexible Lipsync Processing
Unlike standard lipsync tools that fail when audio and video lengths don't match, lipsync 1.9.0-beta implements five distinct sync modes that adapt to duration conflicts. The cut_off mode truncates excess content, loop repeats video to match longer audio, bounce creates palindrome playback, silence extends with frozen frames, and remap time-stretches the video, each solving different production scenarios where rigid length requirements would otherwise require manual pre-editing.
What this means for you:
-
No pre-processing required: Submit mismatched audio-video pairs directly through the fal API. The model handles duration conflicts through your chosen sync mode rather than rejecting inputs or producing broken output
-
Production format flexibility: Accepts MP4, MOV, WebM, M4V, GIF for video and MP3, OGG, WAV, M4A, AAC for audio, eliminating format conversion steps in multi-source workflows
-
Version control for quality: Access to three model versions (1.7.1, 1.8.0, 1.9.0-beta) lets you balance stability versus latest algorithm improvements based on project requirements
-
Predictable per-minute pricing: $0.70 per minute of video processed provides straightforward cost estimation for batch dubbing or localization projects regardless of audio length
Technical Specifications
| Spec | Details |
|---|
| Architecture | Sync.so lipsync 1.9.0-beta |
| Input Formats | Video: MP4, MOV, WebM, M4V, GIF / Audio: MP3, OGG, WAV, M4A, AAC |
| Output Formats | MP4 video with synchronized lip animation |
| Sync Modes | cut_off, loop, bounce, silence, remap |
| License | Commercial use via fal partnership |
API Documentation | Quickstart Guide | Enterprise Pricing
How It Stacks Up
Sync Lipsync 2.0 Video to Video – lipsync 1.9.0-beta trades next-generation algorithm refinements for established beta-tested performance at comparable pricing. Sync Lipsync 2.0 represents the production-ready evolution with enhanced facial tracking for workflows requiring the latest improvements.
Sync Lipsync Pro – lipsync 1.9.0-beta prioritizes flexible duration handling through five sync modes for mismatched content. Sync Lipsync Pro emphasizes processing speed and throughput optimization for high-volume batch operations where audio-video lengths are pre-aligned.
MiniMax Video 01 Live – lipsync 1.9.0-beta focuses on audio-driven facial animation for existing video content. MiniMax Video 01 Live generates complete video from text prompts, serving text-to-video creation rather than audio synchronization workflows.