Sync.so
PRO paidProduction-grade lip sync as an API
About
Sync.so is what you reach for when you need lip sync as a building block — not a user-facing studio. The API takes a video + an audio file and returns the video with synced lips. Quality holds up at production-scale (4K, long takes, multiple speakers). Higgsfield, Pika, and a long list of consumer apps use Sync under the hood.
Key features
- Production-quality lip sync API
- Multi-speaker handling
- Works on existing footage (no avatar regeneration)
- Up to 4K resolution
- Webhook + batch processing
Best for
Studio post-production AI app developers Multi-language redubs