Lemon Slice

Lemon Slice is building the world's best video foundation model for human motion and emotion. The company has raised a $6 million seed round from investors including Y Combinator, Matrix Partners, The Chainsmokers, Emmett Shear, and Arash Ferdowsi among others. It has generated over 1 million videos on its platform and trains its own video models as part of a vertically integrated strategy in the GenAI wave. Founders Lina Colucci, Sidney Primas, and Andrew Weitz bring deep ML and bioengineering credentials, with Colucci co-founding a profitable ML company and holding PhDs from MIT and Harvard, Primas co-founding Edge Analytics with an MIT ML PhD, and Weitz holding a Stanford Bioengineering PhD and leading ML at Edge Analytics. The company has attracted notable coverage and recognition, including features on All In Podcast, the front page of Hacker News, and a top 5 ranking on Product Hunt, signaling a growing market position.