Bernard Aceituno (Stack AI): Lessons from YC, Pivots & Scaling
Zero to One · Jonathan Yana, Matteo David, Gary Rouch
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Show Notes
This week, we sat down with Bernard Aceituno, co-founder & CEO of Stack AI.
Originally from Venezuela, Bernard’s journey took him from a PhD at MIT to building Stack AI, fresh out of Y Combinator. We covered a lot, including:
✅ How Stack AI is revolutionizing AI agents—connecting data sources & tools securely
✅ The real value of YC beyond the hype (including how their first customers came from a YC WhatsApp group)
✅ The role of AI agents as a new software category—automating tasks, interacting with tools, and storing memory
✅ How operationally heavy industries (banks, logistics, healthcare) benefit most from AI automation
✅ Stack AI’s go-to-market strategy—leveraging content, inbound leads, and pilot projects to scale
✅ Why raising money is a distraction and shouldn't take more than two weeks
If you’re building in AI—or thinking about it—this one’s a must-listen.
Key moments:
Introduction (1m13)
YC / Start of the story (8m07)
Vision with Stack AI + AI agent definition + how they integrate into (18m50)
How companies figure out their best use cases with Stack AI, and managing data privacy (23m40)
Data privacy with StackAI (27m12)
Targeting industries - horizontal VS vertical and selling (29m55)
Mistakes made with StackAi (36m37)
Stack AI internal growth (40m35)
The future of the AI space among startups + raising money (44m55)
Resources Bernardo recommended: The hard things about hard things (Ben Horowitz)