Sync, the Y Combinator-backed lipsync startup founded in 2023, launched Sync-3 on April 6. The new model processes entire shots at once instead of in chunks, producing 4K native output with built-in obstruction detection and support for extreme face angles. Pricing starts at $0.107 per second at 25 fps.

What Happened

Sync-3 replaces the chunk-based architecture used in earlier models like Lipsync-2-Pro with what the company calls full-shot processing. Rather than splitting a video into small independent segments, the model analyzes the complete shot, which eliminates stitching artifacts and maintains long-range consistency across the frame.

The model handles scenarios that previously required manual cleanup: faces partially blocked by hands or microphones, profile and over-the-shoulder shots, and rapid dialogue sequences. It also introduces silent lip opening, where the model can animate a closed mouth to match new speech.

Why It Matters

AI lipsync sits at the intersection of dubbing, localization, and AI-generated video. As studios and creators produce content for global audiences, matching lip movements to translated audio has been one of the most labor-intensive steps in post-production. Sync-3 targets this bottleneck directly with 4K ProRes output that is production-ready without additional upscaling.

The model supports six languages: English, Spanish, Hindi, French, German, and Korean. This covers a large portion of global media markets, though gaps remain in East Asian and Southeast Asian languages.

Key Details

  • Resolution: 4K native with integrated super resolution
  • Architecture: Full-shot processing for long-range consistency
  • Pricing: $0.107 to $0.133 per second at 25 fps
  • Plans: Hobbyist ($5/month), Creator ($19/month), Growth ($49/month), Scale ($249/month), Enterprise (custom)
  • Integrations: API, web studio, Adobe Premiere Pro plugin, ComfyUI node
  • Languages: English, Spanish, Hindi, French, German, Korean

What to Do Next

Video editors and localization teams can test Sync-3 through the Sync platform with a free trial at the Hobbyist tier. The pricing page breaks down per-second costs by plan. Those already using AI video tools can compare how lipsync quality stacks up against current workflows in our AI Video Generation Benchmark.