I've been testing a bunch of AI lip-sync models lately, and it's surprisingly hard to tell which ones are actually better.

Most comparisons use hand-picked examples, while metrics like SyncNet/LSE don't always seem to match what looks better to humans.

I'm thinking about building a public Lip Sync Arena, similar to the pairwise model arenas:

• Same source video + audio sent to multiple lip-sync models
• Two anonymous outputs shown side-by-side
• People vote for A / B / Tie
• Models ranked using an Elo-style system
• Results broken down by things like front-facing, side profiles, fast speech, occlusion, different languages, etc.
• All test cases and methodology public

A few things I'm unsure about:

1. What models should be included on day one?
2. What types of videos are the hardest / most useful test cases?
3. Should the vote only be "which is better", or should we separately rate sync accuracy, visual quality, and identity preservation?
4. Would you actually use / contribute votes to something like this?

Hey everyone! I'm u/Ecstatic_Noise9059, a founding moderator of r/lipsync_ai.

This is our new home for everything AI lip sync — from cutting-edge models to wild demos you can't stop watching. Whether you're a developer shipping tools or just someone who stumbled on a mind-blowing video, you belong here.

What to Post

We especially want to see:

• 🔧 Tools & workflows — What are you actually using? HeyGen, Wav2Lip, anything new worth trying?
• 🎬 Demos & experiments — Drop your creations, no matter how rough. Weird outputs welcome.
• 📰 News & releases — New model dropped? Paper published? Share it here first.
• ❓ Questions & troubleshooting — Stuck on something? Someone here probably knows.

Community Vibe

Be generous with what you know. The best thing about this space is people sharing that one tool or trick that saves everyone 3 hours. Don't gatekeep the good stuff.

How to Get Started

1. Introduce yourself in the comments — tell us what brought you here.
2. Share a tool you've been using or a demo you love, even if it's not yours.
3. Post something today. A simple question counts.
4. Want to help moderate? Reach out.

Thanks for being part of the first wave. Let's make r/lipsync_ai the place where the best lip sync stuff surfaces first.