InfiniteTalk is an AI lip-sync and talking-video generator that turns a single photo or an existing clip into a full-body, audio-driven performance. Its sparse-frame engine synchronizes lips, head motion, posture and micro-expressions, and it is built for long-form output such as podcasts, audiobooks and lectures where most lip-sync tools break down.
sync. labs (formerly sync.so) is an AI lip sync and visual dubbing platform that retimes an actor's mouth and facial performance to any audio track. It pairs a browser-based Studio with an AI Assistant, NLE plugins for Premiere Pro and DaVinci Resolve, a ComfyUI node and a REST API, so teams can localize a performance into 29 languages while keeping the original delivery intact.
InfiniteTalk is an AI lip-sync and talking-video generator that turns a single photo or an existing clip into a full-body, audio-driven performance. Its sparse-frame engine synchronizes lips, head motion, posture and micro-expressions, and it is built for long-form output such as podcasts, audiobooks and lectures where most lip-sync tools break down.
State-of-the-art lip accuracy
Synchronizes mouth shapes with the exact phonemes of your audio using phoneme-to-viseme mapping, so every syllable lines up with the visual movement.
Infinite-length generation
Generate hour-long videos — podcasts, audiobooks, lectures — with no technical duration limit and no drop in character consistency.
Full-body synchronization
Head motion, torso posture and micro-expressions are animated alongside the lips for a cohesive full-body performance rather than a floating mouth.
Stable, artifact-reduced output
The sparse-frame engine suppresses the hand, torso and facial warping that plagues many multi-talk and talking-head models, keeping the avatar solid throughout.
強み・メリット
+Infinite-length output with no hard duration cap, unusual among lip-sync tools
+Full-body synchronization covers head, torso and hands, not just the mouth
+Four creation modes: photo animation, video dubbing, multi-person talk and text-to-speech
+Credits from one-time purchases never expire, so you can buy ahead without time pressure
+Commercial use license included from the Pro tier upward
制約・デメリット
–Credit consumption rises quickly with longer videos and higher resolutions
–The most advanced batch-processing and bulk features sit behind the $199.9 Enterprise tier
–No free trial is advertised, so testing requires at least the $9.9 Starter pack
–Long-form renders can take a while and are handled asynchronously in the dashboard
sync. labs (sync.so)
sync. labs (formerly sync.so) is an AI lip sync and visual dubbing platform that retimes an actor's mouth and facial performance to any audio track. It pairs a browser-based Studio with an AI Assistant, NLE plugins for Premiere Pro and DaVinci Resolve, a ComfyUI node and a REST API, so teams can localize a performance into 29 languages while keeping the original delivery intact.
Advanced lip sync models
A model lineup spanning sync-3, lipsync-2-pro, lipsync-2 and react-1, handling side faces, occluded mouths, multiple faces per frame, low light and fast camera movement, up to 4K ProRes footage.
Visual dubbing in 29 languages
Keep the original performance and delivery while replacing the dialogue language, so a single shoot can serve global markets without reshooting the actor.
Text-to-speech and voice cloning
Generate the new voice track inside the platform or bring your own TTS API key; plan tiers include a set number of custom cloned voices.
Studio timeline plus AI Assistant
A frame-accurate editor for cut, trim and split work, alongside a guided assistant where you describe the change you want and it configures the generation.
強み・メリット
+Handles production-grade edge cases other lip sync tools struggle with: side profiles, occluded faces, multiple faces, low light and fast motion
+Multiple access paths — web Studio, AI Assistant, Premiere Pro and DaVinci Resolve plugins, ComfyUI node and full API — so it fits existing pipelines
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