American Entrepreneur Lucy Guo Overtakes T Swift to become Youngest Female Billionaire

By: WE Staff | Monday, 21 April 2025

• Scale AI Co-founder Lucy Guo named as World's Youngest Self-made Billionaire
• 30-year-old Lucy Guo surpasses pop-star Taylor Swift with Company valued at $25 billion

30-year-old entrepreneur Lucy Guo has been named the world’s youngest self-made female billionaire. One of the co-founders of American annotation startup, Scale AI, Lucy entered the billionaire club owing to the company’s recent tender offer valued it at $25 billion. The valuation saw an 80 percent jump from May 2024.

While Lucy is no longer part of Scale AI since 2018, her ample stake (just under five percent) in the company has boosted her net worth to $1.25 billion.

Lucy co-founded Scale AI in 2016 with Alexandr Wang. The AI unicorn has grown to become one of the key player in the artificial intelligence boom.

In a conversation with Fortune, she commented on the recent development and said, “I don't really think about it much, it's a bit wild. Too bad it's all on paper haha,” she told Fortune.

Lucy is one of the only six self-made women billionaires under 40 globally. So far American pop sensation Taylor Swift has held the crown of the youngest self-made female billionaire. She achieved a net worth of $1.6 billion in 2023 October.

After exiting Scale AI, Lucy founded Backend Capital, a venture capital firm backing early-stage startups.

She went on to launch Passes, a creator-centric platform in 2022. With an aim to help celebrities and influencers monetise their fanbase, the platform has partnered with major names such as Olivia Dunne, Shaquille O'Neal, and DJ Kygo.

Lucy was enrolled at Carnegie Mellon University but dropped out to join the prestigious Thiel Fellowship. She has previously worked in product design at Quora and Snapchat.