Sophia Luo
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Sophia Luo is a Partner at Greylock, where she works with early-stage founders building AI-native applications and enabling infrastructure. She studied at MIT, earning degrees in computer science, mathematical economics, and engineering, and began her career at Scale AI as an engineer before moving into product management. She later joined Character AI as a product engineer after working for nearly four years at Scale AI. She is also known for community building and early angel investing, including writing early checks into companies such as Cognition.
Updated 4 September 2026
Public sources: greylock.com
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