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/   Stay Updated:  Let us know what you think: https://ratethispodcast.com/a16z Find a16z on Twitter: https://twitter.com/a16z Find a16z on LinkedIn: https://www.linkedin.com/company/a16z Subscribe on your favorite podcast app: https://a16z.simplecast.com/ Follow our host: https://x.com/eriktorenberg Please note that the content here is for informational purposes only; should NOT be taken as legal, business, tax, or investment advice or be used to evaluate any investment or security; and is not directed at any investors or potential investors in any a16z fund. a16z and its affiliates may maintain investments in the companies discussed. For more details please see a16z.com/disclosures.