Introducing Sync LipSync 2 on WaveSpeedAI

Introducing Sync Lipsync-2 on WaveSpeedAI: The World’s First Zero-Shot Lip Sync Model

The future of video dubbing and content localization has arrived. WaveSpeedAI is thrilled to announce the availability of Sync Lipsync-2, a groundbreaking zero-shot lip synchronization model that transforms how creators, filmmakers, and businesses produce multilingual video content. Built by the team behind the legendary Wav2Lip project and backed by Y Combinator and Google Ventures, Lipsync-2 represents a quantum leap in AI-powered video editing.

Whether you’re dubbing a feature film, localizing marketing content, or creating personalized video messages, Lipsync-2 delivers studio-quality lip synchronization without requiring any training or fine-tuning on your subjects.

What is Sync Lipsync-2?

Sync Lipsync-2 is a zero-shot lip sync model that takes any existing video and a separate audio track, then re-animates the speaker’s mouth to perfectly match the new speech. Unlike traditional dubbing methods that often result in awkward mismatches between lip movements and audio, Lipsync-2 creates seamless, natural-looking results that preserve the speaker’s unique speaking style.

The “zero-shot” capability is what sets this model apart from predecessors. Traditional lip sync solutions required extensive training on specific speakers or extensive manual post-production work. Lipsync-2 works immediately on any face—real actors, 3D animated characters, or AI-generated avatars—without any prior exposure to that speaker.

Key Features

Zero-Shot Lip Synchronization

Drop in any talking-face video plus new audio, and the model directly outputs a perfectly synced result. No training datasets, no fine-tuning, no waiting—just instant, accurate lip sync that works out of the box.

Style Preservation Technology

Lipsync-2 introduces a revolutionary approach to maintaining speaker authenticity. The model uses a spatiotemporal transformer that encodes the unique mouth shapes and speaking patterns from your input video into a “style representation.” When generating new lip movements, it conditions the output on both the target speech and this learned style, ensuring the result looks natural for that specific speaker.

Automatic Active Speaker Detection

For videos with multiple people on screen, Lipsync-2 intelligently detects who is speaking and applies lip sync only to the active speaker. This makes it ideal for interviews, panel discussions, and multi-character scenes.

Cross-Domain Versatility

The model handles diverse content types with equal proficiency:

• Live-action footage from films and corporate videos
• Stylized 3D characters and animations
• AI-generated avatars and digital humans
• Podcast video recordings and educational content

Flexible Sync Modes

When your video and audio durations don’t match, choose from five intelligent handling strategies:

• Bounce: Ping-pong the video to cover longer audio
• Loop: Repeat the video until audio finishes
• Cut-off: Trim to the shorter duration
• Silence: Pad with frozen frames where needed
• Remap: Time-remap for optimal alignment across the full clip

Real-World Use Cases

Film and Television Dubbing

The global AI lip-sync market, valued at $412.4 million in 2024, is growing rapidly as studios recognize the technology’s potential. What once took weeks of manual VFX work can now be accomplished in hours. Lipsync-2 enables film distributors to create authentic foreign-language versions that eliminate the traditional awkwardness of dubbed content.

Content Localization at Scale

For YouTube creators, social media marketers, and global brands, Lipsync-2 unlocks the ability to reach audiences in any language while maintaining the personal connection that comes from natural-looking delivery. A single video can be transformed into dozens of localized versions, each with perfect lip synchronization.

E-Learning and Corporate Training

Training departments can update instructional videos with new narration, translate onboarding materials for international offices, and correct dialogue without expensive reshoots. The model makes video content as editable as a text document.

Podcast and Interview Enhancement

Podcasters and interviewers can fix audio issues, replace segments, or translate entire episodes while maintaining the natural appearance of their on-camera talent.

Gaming and Virtual Experiences

Game developers and VR creators can generate realistic dialogue sequences for characters, update voiceover performances, and localize games for global markets without re-animating from scratch.

Getting Started on WaveSpeedAI

Using Sync Lipsync-2 on WaveSpeedAI is straightforward:

1. Upload your video: Provide a video file or URL containing a clearly visible face. Frontal or three-quarter views with good lighting work best.

2. Upload your audio: Add the target speech audio you want the lips to sync to. Clean audio with minimal background noise produces the best results.

3. Select your sync mode: Choose how you want to handle any duration mismatches between video and audio.

4. Run and download: Click Run and receive your perfectly re-dubbed video once processing completes.

Pricing

Lipsync-2 uses transparent, linear pricing based on video length at $0.05 per second of input video:

Video Length	Price
5 seconds	$0.25
10 seconds	$0.50
30 seconds	$1.50
60 seconds	$3.00

Pro Tips for Best Results

• Use videos with stable framing and good lighting for more accurate mouth motion
• Start with “cut_off” mode for simple dubbing projects
• For longer audio over short clips, try “loop” or “remap” modes
• Keep audio free of strong music or compression artifacts
• Process each shot separately for multi-shot edits, then assemble in your preferred video editor

Why Choose WaveSpeedAI?

When you access Sync Lipsync-2 through WaveSpeedAI, you benefit from:

• Lightning-fast inference: Our optimized infrastructure delivers results quickly, so you can iterate and refine your content without waiting
• No cold starts: Your jobs begin processing immediately without the delays common on other platforms
• Affordable pricing: Pay only for what you use with transparent, predictable costs
• Simple REST API: Integrate lip sync capabilities directly into your production pipelines with our easy-to-use API

Transform Your Video Workflow Today

The days of choosing between authentic-looking content and multilingual reach are over. Sync Lipsync-2 represents a paradigm shift in video production—one where language barriers dissolve and every video can speak directly to any audience in the world.

Whether you’re a solo creator looking to expand your global audience, a marketing team launching international campaigns, or a post-production house serving clients worldwide, Lipsync-2 provides the professional-quality lip synchronization you need at a fraction of traditional costs.

Ready to experience the future of video dubbing? Try Sync Lipsync-2 on WaveSpeedAI today and see how effortless perfect lip sync can be.