Lemon Slice Raises $10.5M Seed Round

Lemon Slice Raises $10.5M Seed Round

Lemon Slice, a San Francisco, California–based AI technology platform specializing in interactive video generation, has raised $10.5 million in Seed funding.

The round was from Matrix Partners, Y Combinator, Arash Ferdowsi, Emmett Shear, and The Chainsmokers.

The company will use the capital to advance development of its proprietary Lemon Slice-2 model and to expand its production-ready interactive video platform for developers and enterprises.

Founded by Lina Colucci, Sidney Primas, and Andrew Weitz, Lemon Slice is an AI research and product lab building foundational technology for interactive video. The company specializes in creating expressive talking avatars and interactive video agents. Its flagship model, Lemon Slice-2, is a real-time, zero-shot AI avatar system that transforms a single image into a live, conversational video call. Headquartered in San Francisco, California, the company believes all video will eventually be interactive, generated on the fly, and personalized to each viewer. Lemon Slice is developing both the core video foundation model technology and the platform layer to enable this new medium.

Funding Details

Company: Lemon Slice

Raised: $10.5M

Round: Seed

Funding Date: December 2025

Lead Investors: Matrix Partners, Y Combinator; Arash Ferdowsi; Emmett Shear; The Chainsmokers

Company Website: https://lemonslice.com/

Software Category: AI Video / Conversational AI / Avatar Technology