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Y Combinator summaries

Every long episode from Y Combinator, read in minutes: the key takeaways, the chapters, and a digest of the whole conversation. All the world is changing around technology and you may contribute a line of code. What will yours be? Subscribe for startup advice, founder stories, and a look inside Y Combinator. What is Y Combinator? We invest $500,000 in every startup and work intensively with the founders f…

How Jeetu Patel Runs Cisco Like the World’s Largest Startup

Jeetu Patel, Cisco's president and chief product officer, discusses how he's instilling a founder's mindset at the company, going all-in on AI, and the massive data center buildout currently underway.

October 8, 2026

What If We Stopped Using GPUs? | YC Paper Club

YC Paper Club explores the future of computing beyond GPUs, delving into alternative architectures like optical and neuromorphic computing, and discussing novel optimization methods inspired by the human brain.

October 2, 2026

Startups Are Moving From Bits to Atoms

Y Combinator partners discuss the latest trends in startups, highlighting the resurgence of hard tech, the accelerated growth of companies, and the increasing number of experienced and solo founders.

September 17, 2026

Self-Improving Harnesses, Local Personal AI And YC's Agent For Work | YC Paper Club

YC Paper Club explores the evolution of AI harnesses, from simple wrappers to complex, self-improving systems, and showcases how these advancements are transforming AI research and practical applications.

September 7, 2026

Max Junestrand: You Need The Willingness To Learn Faster Than Anyone Else

Max Junestrand, co-founder and CEO of Legora, shares the company's journey from a rejected Y Combinator application to a global legal tech leader, emphasizing the importance of perseverance, customer focus, and a strong company culture.

August 25, 2026

Going In Deep On Data | YC Paper Club

The YC Paper Club's "Data Edition" explores the critical role of data in AI development, highlighting how expert data is the bottleneck to AI progress and the shift from model-centric to data-centric approaches.

August 20, 2026

Michael Kratsios: Inside the White House's AI Strategy

Michael Kratsios, Director of the White House's Office of Science and Technology Policy, discusses the US national AI strategy and the government's role in fostering technological innovation.

August 18, 2026

Susan Kare: Designing Icons & Graphics For the Original Mac

Susan Kare, the iconographer and designer behind the original Macintosh icons, shares her journey from welding life-sized razorback hogs to designing the user interface for early Apple products and beyond.

August 14, 2026

Groww: If Your Customers Don't Love It or Hate It, You've Already Lost

In this Y Combinator video, La Kishray discusses the journey of Grow, emphasizing the importance of customer love and how building a product that customers either love or hate is crucial for success. He shares insights on navigating challenges, iterating on ideas, and maintaining a strong co-founder alignment throughout their growth.

June 15, 2026

How Meesho Became India’s Biggest Shopping App

In this video, Y Combinator discusses how Meesho evolved from a small business idea to India's largest shopping app by focusing on democratizing e-commerce for everyday consumers and adapting to market shifts, including the transition from WhatsApp to a dedicated app. The founders emphasize the importance of being customer-centric and flexible in their approach to problem-solving.

June 11, 2026

The CEO Must Be the Chief AI Officer

In this insightful discussion, Y Combinator emphasizes that the CEO must embrace the role of Chief AI Officer, understanding AI's potential to reshape company identity and operations while advocating for a culture of experimentation and adaptation in leveraging AI technologies. Pedro Franchesci of Brex shares his journey in integrating AI into their processes, highlighting the importance of maximizing token usage and creating a framework for AI-driven decision-making.

June 10, 2026

Emergent: How Six Months of Tinkering Led To A $100M ARR Company

In this video, Y Combinator discusses how Emergent, an AI-driven platform, democratizes software development by enabling users without programming skills to create and monetize applications, achieving a remarkable $100 million ARR in just nine months. The founders emphasize the importance of innovation and understanding user needs to carve out a significant space in a competitive market.

June 6, 2026

How Legora Went From YC to $100M ARR in 18 Months

In this video, Y Combinator discusses how Legora rapidly grew to $100M ARR within 18 months by leveraging innovative marketing strategies, including a partnership with actor Jude Law, and highlights the importance of confidence and adaptability in navigating the startup landscape.

June 5, 2026

Why Two IIT Engineers Turned Down $550K Jobs To Build A Startup

In this Y Combinator video, IIT engineers Varun and his co-founder discuss their journey of turning down lucrative job offers to pursue their startup, GigaML, which builds AI agents for customer support, emphasizing the importance of finding a viable market and delivering real value to customers. They share insights on navigating challenges, pivoting ideas, and the significance of embracing risk in entrepreneurship.

May 29, 2026

Inference, Diffusion, World Models, and More | YC Paper Club

In this inaugural YC Paper Club session, Y Combinator brings together a community of founders and researchers to discuss cutting-edge topics in AI, including inference, speculative decoding, and world models, emphasizing the importance of inference as a capability rather than merely a cost factor in AI development.

May 28, 2026

Inside YC's AI Playbook

In "Inside YC's AI Playbook," Y Combinator explores how to build a super intelligent organization by leveraging AI as a foundational layer rather than just a tool, emphasizing the importance of shared knowledge and collaboration to enhance productivity and decision-making. The discussion highlights the creation of an internal infrastructure that enables teams to utilize AI effectively, fostering a culture of transparency and continuous improvement.

May 27, 2026

How The Best Companies Defend Against Mediocrity And Rot

In this video, Y Combinator discusses Eric Ries' new book, Incorruptible, highlighting the importance of founders understanding how to protect their companies from mediocrity and corruption as they scale, emphasizing the need for a governance model that prioritizes the mission over mere profit maximization.

May 22, 2026

Why Zepto's Aadit Palicha Turned Down Stanford to Deliver Groceries

In this Y Combinator video, Aadit Palicha shares his journey of founding Zepto, emphasizing the importance of starting with customer experience and iterating on their model to achieve success, ultimately deciding to drop out of Stanford to pursue this opportunity. He highlights that focusing on solving real customer problems led to innovative solutions in the grocery delivery space.

May 19, 2026

How Razorpay Became India’s Largest Payments Company

In this video, Y Combinator discusses how Razorpay became India's largest payments company, highlighting the importance of trust, customer-centric problem solving, and the ability to adapt quickly to market changes, particularly through the incorporation of AI technology. The founders emphasize the need for deep conviction in the problems they are solving, as true entrepreneurial success requires long-term commitment and resilience.

May 6, 2026

Beyond Bigger Models: Recursion As The Next Scaling Law In AI

In this episode of Decoded, Y Combinator visiting partner Francois Shaard discusses the innovative use of recursion in AI models, specifically through Hierarchical Reasoning Models (HRM) and Tiny Recursive Models (TRM), which enhance reasoning capabilities without simply increasing model size. The conversation highlights how these models leverage recursive processes to solve complex problems more efficiently than traditional methods.

May 1, 2026

How to Build the Future: Demis Hassabis

In this talk, Demis Hassabis discusses the ongoing journey towards achieving artificial general intelligence (AGI), emphasizing the need for advancements in continual learning and reasoning. He reflects on the significant progress made by DeepMind, particularly with innovations like AlphaFold, while highlighting the challenges that remain in creating systems capable of genuine scientific reasoning and problem-solving.

April 29, 2026

The $9B startup that wants to create a billion new developers

In this video, Y Combinator interviews Amjad Masad, CEO of Replit, about their mission to create a billion new developers by making app development accessible to everyone through innovative tools that leverage AI for coding and design, thus simplifying the software creation process for non-technical users.

April 25, 2026

Inside Garry Tan's Claude Code Setup

Leverage AI agents like Claude Code with a structured team approach (roles, process, review) to build software 10x faster, moving from idea to deployable product with AI-assisted planning, coding, and QA.

April 23, 2026

How Stripe Built Their New Website

Stripe's Head of Design reveals how they rebuilt their homepage to better reflect their evolved business, emphasizing clear narrative, visual sophistication, and user-centric exploration.

April 22, 2026