The story of Lucy Guo

Co-founder of Scale AI, which she left in 2018.

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Lucy Guo. Co-founder of Scale AI, which she left in 2018.

2015

Lucy Guo worked at Quora. Product designer.

Joined in 2015, where she met Alexandr Wang; Forbes says she left for a brief stint at Snapchat before co-founding Scale in 2016. No source gives exact dates.

2016

Lucy Guo founded Scale AI. Co-founder.

2016–2018: Lucy Guo worked at Scale AI. Co-founder; led operations and product design, COO.

COO is her title on Scale’s team page archived 2017-03-23; she left in 2018 (no month given). Her own accounts: “disagreements around products and sales” (CNBC, 2025) and “differences in product vision and road map” (Forbes, 2023).

Lucy Guo owns a stake in Scale AI.

4 sourced connections, each with its evidence. Open the explorer to follow any of them further, filter by lens, or move through time.

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Drawn from the sourced links on Lucy Guo. Change a link and this story changes with it.