The a16z Show25 Jun 2025

Building Cluely: The Viral AI Startup that raised $15M in 10 Weeks

What if virality wasn’t a tactic — but the entire product?

In this episode, a16z General Partners Erik Torenberg and Bryan Kim sit down with Roy Lee, cofounder and CEO of Cluely, one of the most talked-about consumer AI startups of 2025. Cluely didn’t raise a mega round or drop a feature suite to get traction - it broke through by turning distribution into design: launching viral short-form videos, pushing polarizing product drops, and building in public with speed and spectacle.

We cover:

– Why virality is Cluely’s moat

– Building a brand-native AI interface

– The Gen Z founder mindset

– What most startups get wrong about attention

– Why creators are the new product managers

– Cluely’s long-term vision for ambient AI

Cluely is a glimpse at the next generation of startups, where the line between product and performance is disappearing.

Timecodes:

00:00 Introduction

01:07 Early Success

02:02 Roy's Journey: From College Kid to Tech Universe

04:37 The Turning Point: Harvard and Beyond

06:57 Building Cluey: The Early Days

08:27 The Viral Strategy: Mastering Algorithms

13:56 The 50 Interns Experiment

15:30 The Investment Journey: Roy and Bryan's Partnership

19:20 Momentum as a Moat: The Future of AI Companies

20:32 The Evolution of Product Strategy in the AI Era

21:19 The Importance of Speed and Adaptability

22:48 The Role of Distribution in Modern Startups

24:26 Roy's Journey and Product Development

25:25 The Power of User Data and Feedback

26:58 Innovative Marketing and Distribution Tactics

28:25 The Future of AI Integration and Translucent Overlays

32:15 Controversial Marketing and Authenticity

34:01 The Impact of Radical Transparency

36:42 The Changing Landscape of Professionalism

38:26 Concluding Thoughts and Future Vision

Resources:

Find Roy on X: https://x.com/im_roy_lee

Find Bryan on X: https://x.com/kirbyman01

Learn more about Cluely: http://cluely.com/

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