# Youngest Self-Made Female Billionaire: How she Co-Founded Scale AI At 21, then Built another Nine-Figure Company Again!

Page: https://stenobird.com/podcast/truthworks-6820723/youngest-self-made-female-billionaire-how-she-co-founded-scale-ai-at-21-then-built-another-nine-figure-company-again
Text version: https://stenobird.com/podcast/truthworks-6820723/youngest-self-made-female-billionaire-how-she-co-founded-scale-ai-at-21-then-built-another-nine-figure-company-again.md
Podcast: [TruthWorks](https://stenobird.com/podcast/truthworks-6820723)
Published: 2026-03-17T13:00:00+00:00
Episode link: https://www.buzzsprout.com/2515573/episodes/18860981-youngest-self-made-female-billionaire-how-she-co-founded-scale-ai-at-21-then-built-another-nine-figure-company-again.mp3
Audio file: https://www.buzzsprout.com/2515573/episodes/18860981-youngest-self-made-female-billionaire-how-she-co-founded-scale-ai-at-21-then-built-another-nine-figure-company-again.mp3
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Duration seconds: 2121

## Resource

Lucy Guo didn't follow a path — she built one nobody had walked before. She was trading Pokemon cards for cash in kindergarten, running bots on Neopets in second grade, and teaching herself to code before most kids knew what a startup was. By 21, she had co-founded Scale AI — one of the most consequential AI infrastructure companies ever built. By her late twenties, she had become the youngest self-made female billionaire in history. But the real story isn't the title. It's what happened befo...

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## Transcript

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