Lip Sync AI
Frame-accurate lip sync from any video and audio pair
About Lip Sync AI
Lip Sync AI addresses the single most obvious failure mode in dubbed and AI-generated video: mouths that do not match the words. Human viewers detect the mismatch instantly and involuntarily, which is why badly dubbed footage feels wrong even to someone who cannot articulate why. That has historically confined dubbing to budgets that could afford careful re-timing, leaving most creators publishing in one language only. This tool takes a video and an audio track and aligns the mouth movement to the audio frame by frame, in seconds.
Expression preservation is the detail that distinguishes it from a naive mouth replacement. Crude lip sync animates the mouth and leaves the rest of the face static, producing an effect somewhere between a puppet and a hostage video. Preserving the original expressions keeps the performance intact while changing only what the mouth is doing. Five distinct sync modes cover different source material rather than applying one approach to everything. Beyond straightforward dubbing, the product covers multilingual localisation and talking avatar creation, with a Talking Photo feature that animates a still image into a speaking face. It is part of a broader toolset from the same operator including Veo 3.1 video generation and Seedream 5.0 image generation.
Upload the video you want to re-sync along with the audio track it should match, whether that is a translated voiceover, a re-recorded take or a generated voice. Choose among the five sync modes based on your source footage, since a close-up talking head and a wider shot need different handling. The system aligns mouth movement to the audio frame by frame while leaving the original facial expressions in place, returning the result in seconds. For the talking avatar case, supply a still photograph instead of a video and an audio track, and the image becomes an animated speaking face. Free credits are provided so output quality can be judged on your own footage before paying.
- •Frame-Accurate Alignment - Mouth movement matched to audio frame by frame rather than approximately timed to the speech envelope
- •Expression Preservation - Original facial expressions retained, so the performance survives the re-sync instead of going flat
- •Five Sync Modes - Different handling for different source material rather than one approach applied to every clip
- •Multilingual Localisation - Built for dubbing content into other languages, which is the main commercial use of lip sync
- •Talking Photo - Animate a still photograph into a speaking face from an audio track
- •Seconds-Long Processing - Fast enough to try several modes on the same clip and compare
- •Free Starting Credits - Ten one-time credits so quality can be assessed on real footage before purchase
- •Wider Toolset Access - Veo 3.1 video generation, video-to-video and Seedream 5.0 image generation on the same account
For creators localising existing content into other languages, where the alternative is either subtitles or dubbing that visibly does not match. It suits marketers adapting one video asset across regional markets, educators translating course material, and anyone producing AI avatar presenters who needs the mouth to be convincing. Agencies handling multilingual client campaigns get the clearest return, since one shoot can serve many markets. The Talking Photo mode serves a different case entirely: bringing a single still image to life without any video footage at all.
Pricing
$0 - $99.90/mo
- Free$0/mo
- Basic$29.90/mo
- Pro$49.90/mo
- Business$99.90/mo
- Business Pack$199.90 once
- Business Pack Max$499.90 once
From the vendor pricing page, 2026-09-18
