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Mantis

Digital Twins of humans

Y CombinatorWinter 2026ActiveB2BInfrastructure

What they do

Problem

Organizations lack reliable ways to predict and model complex human behavior when real-world behavioral data is rare or hard to collect.

Solution

Mantis builds human digital twins by combining large language models with high-fidelity physics simulations to turn scarce behavior data into predictive models.

Who it's for

Researchers and enterprises needing predictive human behavior models for simulation, testing, or decision-making.

Founders

Georgia Witchel
Founder

I'm an Ex-elite ice climber turned repeat computer science / biomedical founder. After bringing climbing to an Olympic stage (Lilihammer 2016), breaking 8 world records, and developing the sport of ice climbing, I dropped out of high school, got a degree in CS from Harvey Mudd, was a founding engineer for a sports tech company, founded a YC company (Louiza Labs), and earned a master's in Bioengineering.

Open roles 1

Part-Time Content Creator / Video Editor Contractor
New York City / NY, US / Remote (US) · Contract · $30 - $70
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