

Y Combinator Startup Podcast
Y Combinator
We help founders make something people want. The Y Combinator Podcast is where builders talk about building. From the earliest days of an idea to scaling a company that changes the world, YC partners and founders share real stories, lessons, and tactics from the frontlines.
Episodes
Mentioned books

100 snips
Nov 13, 2025 • 13min
Inside The Startup Launching AI Into Space
In this conversation, Philip Johnston, Co-founder of StarCloud, shares his vision for revolutionary orbital data centers powered by GPU technology. He discusses the successful launch of the NVIDIA H100 satellite, marking a new era for AI in space. Johnston explains how these data centers can drastically reduce energy and water use, while also being cooled by deep space. He addresses skepticism around design challenges and emphasizes the team's rapid development. Plus, they discuss the growing interest from tech giants and their ambitious plans for future satellites.

199 snips
Nov 7, 2025 • 43min
How To Recruit The Best Engineers And Sales Reps
David Paffenholz, co-founder and CEO of Juicebox, discusses how early-stage startups can effectively recruit top engineers and sales reps. He emphasizes that hiring is about selling the company, not just interviewing. David shares strategies for appealing to candidates, highlighting how first hires shape company culture and velocity. He details the importance of personalized outreach and the different sourcing techniques for engineers versus AEs. With insights into crafting compelling emails and maintaining candidate relationships, David provides a roadmap for building a strong team.

411 snips
Oct 28, 2025 • 39min
From Idea to $650M Exit: Lessons in Building AI Startups
Jake Heller, co-founder and former CEO of Casetext, shares insights from leading an AI legal startup to a $650 million acquisition. He discusses choosing AI startup ideas, emphasizing tasks people already pay for. Heller breaks down effective building strategies, highlighting the importance of understanding workflows and rigorous evaluations. He reveals how to refine prompts for high accuracy and stresses that product quality surpasses marketing. Additionally, he shares tips on pricing, building trust with buyers, and ensuring product adoption.

164 snips
Oct 23, 2025 • 9min
Transformers: The Discovery That Sparked the AI Revolution
The podcast delves into the transformative power of the Transformer architecture that revolutionized AI language understanding. It explores the evolution from RNNs and LSTMs to the groundbreaking 2017 paper, 'Attention Is All You Need.' Key topics include the significance of self-attention in modeling relationships and how attention improved translation accuracy. The discussion also covers the limitations of LSTMs, the implications of attention across various domains, and the rise of popular models like BERT and GPT. A fascinating journey through AI's past and future!

97 snips
Oct 21, 2025 • 39min
YC Partners Answer Your Questions | Office Hours
Founders grapple with essential decisions about go-to-market strategies for AI, weighing options like partnerships and acquiring firms. The importance of measurement in automation is highlighted, along with advice on navigating product pivots and when to hire. The panel emphasizes learning quickly through smaller customers and the need for founders to understand sales fundamentals before utilizing AI sales roles. Insights on open sourcing SaaS products and the value of testing ideas help navigate the tricky terrain of startup growth.

199 snips
Oct 14, 2025 • 8min
What Everyone Is Getting Wrong About AI And Jobs
Dive into the complex relationship between AI and jobs as Garry Tan debunks two extremes: the end of human work and mere hype. Discover how advancements in radiology have increased demand for human expertise. Explore Jevons paradox, revealing how efficiency creates latent demand. Historical examples, like containerization, illustrate technology's role in job creation. Learn how AI-driven efficiency is transforming industries, pushing founders to seize the moment and innovate beyond current expectations.

163 snips
Oct 13, 2025 • 36min
How To Design Products That Truly Stand Out
Karri Saarinen, co-founder and CEO of Linear and former designer at Coinbase and Airbnb, shares insights on creating standout products. He emphasizes the importance of quality design and craft from day one, drawing from his experience in high-growth companies. Karri discusses how design builds trust, the discipline of brand consistency, and the superpower of designer founders to visualize the entire product. He also explores how AI is transforming workflows and stresses the need for hiring talent that aligns with product vision.

82 snips
Oct 9, 2025 • 13min
The World's First Commercial Mobile Carbon Capture Device
Paul Gross, Founder and CEO of Remora, is pioneering mobile carbon capture devices for trucks and trains. He discusses how they extract CO2 directly from moving vehicles and sell it for industrial reuse. Paul shares insights on the advantages of point-source capture over direct air capture, his unconventional journey into this tech space, and the benefits of in-house manufacturing. He also reveals ambitious goals for scaling to other vehicles and the future potential of their technology in transforming the transportation industry.

457 snips
Oct 7, 2025 • 41min
Every AI Founder Should Be Asking These Questions
Jordan Fisher, co-founder of Standard AI and now leading an AI alignment research team at Anthropic, dives into the pressing questions every AI founder should confront. He challenges the necessity of starting new ventures in the shadow of AGI, explores how AI might change enterprise dynamics and software quality, and discusses building trust amidst evolving team structures. Fisher also raises concerns about privacy in personal AI agents and advocates for binding audits to ensure accountability in the AI landscape.

360 snips
Oct 1, 2025 • 1h 4min
Anthropic Head of Pretraining on Scaling Laws, Compute, and the Future of AI
Nick Joseph, Head of Pretraining at Anthropic, shares insights from his extensive background in AI model training and infrastructure engineering. He discusses the complexities of scaling frontier AI models, emphasizing the importance of pretraining and the intricate balance of compute resources. Nick highlights how infrastructure challenges often overshadow machine learning issues and the necessity of practical engineering skills. He also touches on AI alignment and the evolving landscape of data availability, offering a glimpse into the future of artificial intelligence.


