Sophia Luo invests in early-stage AI applications and infrastructure as a partner at Greylock. Previously, she helped launch Scale AI’s Generative AI Data Engine and worked on core product and growth at Character AI.

Unclaimed profile

Sophia Luo invests in early-stage AI applications and infrastructure as a partner at Greylock. Previously, she helped launch Scale AI’s Generative AI Data Engine and worked on core product and growth at Character AI.

Career

Sophia Luo studied at Massachusetts Institute of Technology (BS, Computer Science, BS, Mathematical Economics, and MEng, Computer Science).

Partner at Greylock until PresentInvests in AI-native infrastructure and applications and helps lead Greylock Edge and Greylock Scout.

Investing Announcements

Cosigns Received

GreylockEarly conviction and concentrated partner support for founders building new categories.
First Cosign
we were drawn to her infectious energy, ambition and competitive spirit, and technology chops.
Source
forbes.com

Sophia Luo — Forbes 30 Under 30 2026

Forbes profile covering Luo's investing and accelerator work at Greylock.

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youtube.com

Fireside Chat - Robots: Beyond Imagination

Sophia Luo interviews Brad Porter about practical robot design, warehouse deployments, and the challenges of moving from prototype to production.

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greylock.com

Voice Agents: Easy to Use, Hard to Build

Sophia Luo examines the engineering tradeoffs behind deployed voice systems, including latency, interruption handling, orchestration, and evaluation.

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linkedin.com

From Building to Backing: Year One Reflections

Sophia Luo connects her product and engineering background to investing, with lessons on founder judgment, customer feedback, and useful introductions.

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Sophia's Collections

Sophia's Lists

In these lists

Cosigns Given