Fundz

Lemon Slice secures $10.5M from YC and Matrix to enhance its digital avatar technology.

PRIVATEDec 23, 2025

Amount Raised

$10.5 Million

Round Type

Seed

San FranciscoInformation TechnologyArtificial IntelligenceMachine Learning

Investors

Y CombinatorMatrix

Description

Lemon Slice has raised $10.5 million to develop its video-based digital avatar technology. The funding will support the launch of Lemon Slice-2, a model that creates interactive digital avatars. The company aims to integrate these avatars into apps for various uses, including customer service and mental health support. With this innovative tech, Lemon Slice plans to differentiate itself in the growing generative AI market.

Quick answer

Lemon Slice raised $10.5 Million in a Seed round, dated December 23, 2025. Investors: Y Combinator and Matrix. Lemon Slice is based in San Francisco, California, United States.

How much did Lemon Slice raise?
Lemon Slice raised $10.5 Million in a Seed round on December 23, 2025.
Who invested in Lemon Slice?
Y Combinator and Matrix are named as investors in this round.
What does Lemon Slice do?
Lemon Slice is a frontier AI research and product lab building the future of interactive video.
Where is Lemon Slice based and how big is it?
Lemon Slice is based in San Francisco, California, United States. Fundz records about 6 employees.
Who are the decision-makers at Lemon Slice?
Fundz holds 1 contact at Lemon Slice. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Artificial Intelligence and Machine Learning around the same time

Companies in the same sectors as Lemon Slice that raised within 45 days of this round, from Fundz verified event records.

  • Cursor raised $2.3B (Funding Round) on November 13, 2025.
  • Safety Shield Global raised an undisclosed amount (Private Equity) on February 6, 2026.
  • Sapiom raised $15M (Seed) on February 6, 2026.
  • Flock AI raised $6M (Seed) on February 5, 2026.
  • Nomagic raised $10M (Series B) on February 5, 2026.
  • Goodfire raised $150M (Series B) on February 5, 2026.

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Company Information

Company

Lemon Slice

Location

San Francisco, California, United States

About

Lemon Slice is a frontier AI research and product lab building the future of interactive video. The company believes all video will eventually be interactive—generated on the fly and personalized to whoever is watching. Lemon Slice is building both the core video foundation model technology and the platform layer to enable this new medium. Backed by $10.5 million in seed funding, the team of eight includes talent from MIT, Harvard, Stanford, CMU, and Duke with deep expertise in AI and a shared passion for visual storytelling. T

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Lemon Slice raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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