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Y Combinator Startup Podcast

Y Combinator Startup Podcast

Y Combinator 314 Episodes Jul 17, 2026

The Y Combinator Startup Podcast features conversations with Y Combinator partners and founders about building startups. Topics range from the earliest stages of an idea to scaling a company that changes the world. The podcast shares real stories, lessons, and tactics from the frontlines of entrepreneurship.

Episodes

World Models, Explained
World Models, Explained Jul 17, 2026 01:14:26 Why do even our best AI models need tens of thousands of examples to learn skills that a human picks up in a handful of tries?Solving this problem is one of the great open challenges in modern AI. World models, which give AI an internal simulation of its environment, are one of the most promising paths forward.In this episode of Decoded, YC's Ankit Gupta and Francois Chaubard discuss the intui
How To Better Understand Your Users
How To Better Understand Your Users Jul 9, 2026 00:13:50 Most founders obsess over dashboards and aggregate metrics, but some of the best product insights come from understanding how individual users actually use their product.In this episode of Startup School, YC's David Lieb walks through one of his favorite tools for better understanding your users, the dot plot. It's a simple two-dimensional grid that reveals usage patterns no aggregate char
Why Domain Experts Are Winning In The Age Of AI
Why Domain Experts Are Winning In The Age Of AI Jun 19, 2026 00:42:42 Bryant Chou co-founded Webflow, which today powers around 1% of all websites on the internet. Now he's back in the current YC batch with Ploy, an AI-powered website and marketing platform that doesn't just build your site — it connects to your analytics, CRM, and search console to optimize your marketing while you sleep. In this episode of the Lightcone he explains how he built Ploy to be
How To Pick A Startup Idea
How To Pick A Startup Idea Jun 17, 2026 00:11:30 Many founders get stuck trying to find the perfect startup idea before they commit. But the perfect idea doesn't exist in the abstract. The only way to find what works is to pick one, go deep, and get feedback from real customers.In this episode of Startup School, YC's Jon Xu breaks down how to choose what to build, "burn the other boats," and go deep enough to practically run yo
"The CEO Must Be the Chief AI Officer"
"The CEO Must Be the Chief AI Officer" Jun 10, 2026 00:54:06 Brex co-founder and CEO Pedro Franceschi believes most people still underestimate how much AI will change the way companies are built. AI isn't just another tool, it's a new foundation for building products, teams, and companies.In this episode of Lightcone, Pedro shares why he thinks we're only months into a platform shift as significant as the invention of electricity, how AI has cha
How to Build an AI-Native Services Company
How to Build an AI-Native Services Company Jun 3, 2026 00:11:21 Some of the biggest companies of the next decade won't be software businesses, they'll be services companies like insurance carriers, law firms, and tax practices rebuilt from scratch with AI doing most of the work. In this episode of Startup School, YC Visiting Partner Charlie Warren walks through the playbook for building AI native services companies, covering how to pick a market with t
How To Build Superintelligence Inside Your Company
How To Build Superintelligence Inside Your Company May 27, 2026 00:46:29 Building superintelligence inside a company isn't about adding AI as a feature. It's about making it the operating system the whole organization runs on. In this episode of the Lightcone, we sat down with YC's Pete Koomen to talk for the first time about how he led the effort to build YC's internal agent infrastructure from the ground up. We cover how giving agents unrestricted acc
How The Best Companies Defend Against Mediocrity And Rot
How The Best Companies Defend Against Mediocrity And Rot May 25, 2026 00:50:04 In this episode of the Main Function Garry sits down with Eric Ries, author of "The Lean Startup", about his new book, "Incorruptible: Why Good Companies Go Bad And How Great Companies Stay Great". Ries breaks down why shareholder primacy often leads to company and product degradation, how founders can lose control of the companies they build, and what legal structures and gove
Paul Graham: Should you move to Silicon Valley?
Paul Graham: Should you move to Silicon Valley? May 13, 2026 00:21:57 Paul Graham is a co-founder of Y Combinator. He's funded and mentored companies like Dropbox, Airbnb, DoorDash, and thousands of others through YC, and is one of the most influential voices in the startup world.In this talk at our YC | Stockholm event last month, Paul walks through why ambitious founders should move to Silicon Valley at least briefly, what makes it uniquely valuable — from serendi
Tokenmaxxing: How Top Builders Use AI To Do The Work Of 400 Engineers
Tokenmaxxing: How Top Builders Use AI To Do The Work Of 400 Engineers May 8, 2026 00:41:29 We're entering a new era of software where a single person, working with AI agents, can build products that previously required entire teams.In this episode of Lightcone, the hosts break down the rise of AI coding agents, "tokenmaxxing", and the emerging workflows behind tools like Claude Code and OpenClaw. They discuss why AI systems today feel less like productivity tools and more like collabora
Beyond Bigger Models: Recursion As The Next Scaling Law In AI
Beyond Bigger Models: Recursion As The Next Scaling Law In AI May 1, 2026 00:37:52 A 7-million parameter model outperforming models a thousand times its size on tasks like ARC Prize. That's what recursive reasoning unlocks.In this episode of Decoded, YC's Ankit Gupta and Francois Chaubard break down two recent papers on recursive AI models, HRMs and TRMs, that are achieving state-of-the-art results with a fraction of the parameters of today's largest models.They expl
How to Build the Future: Demis Hassabis
How to Build the Future: Demis Hassabis Apr 29, 2026 00:40:56 Demis Hassabis has had one of the most extraordinary careers in tech. He started as a chess prodigy and video game designer at 17 before getting a PhD in neuroscience and going on to found DeepMind. His lab cracked Go, solved protein structure prediction with AlphaFold, and then gave it away free to every scientist on earth. That work won him the 2024 Nobel Prize in Chemistry. Today he leads Googl

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