Startup Profile

sync.: AI lipsync tool for video content creators

July 2026 · 2 min read

sync., an AI lipsync tool for video content creators and a Y Combinator Winter 2024 company, is drawing industry attention as it scales operations following its accelerator cohort. The company’s mission is to make video as fluid and editable as a word document — letting creators record once, revise at will, and post, without re-recording because of a flubbed line or an unwanted pause. That thesis sits at the intersection of generative AI and practical creator workflow, and the team frames it plainly: AI-modified video, not AI-generated video, is the future of the medium.

Founded in 2023 and based in San Francisco, sync. was built by the original team behind the open-sourced Wav2Lip — the most prolific lip-sync model to date, with over 10,000 GitHub stars. The company now counts a team of 13, led by founders Prady Modukuru, Prajwal K R (Chief Scientist), Rudrabha Mukhopadhyay, and Pavan Reddy. The team trains state-of-the-art generative models, productizes and hosts them at scale, grows virally through content, and upsells into enterprise — a four-part go-to-market that combines research credibility with distribution discipline.

Currently an active Y Combinator portfolio company, sync. looks to the coming quarters with a focus on product execution, customer expansion, and disciplined growth. Observers will be watching how the team continues to convert early momentum into durable category leadership.