Y Combinator - Lightcone Podcast

Lightcone Podcast

Techno optimism for technical founders.

Y Combinator12 Episodes

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undefined - Good News For Startups: Enterprise Is Bad At AI

Good News For Startups: Enterprise Is Bad At AI

MIT's new State of AI in Business report went viral for claiming that 95% of enterprise AI projects fail. But the real story isn't that AI doesn't work — it's just big companies can't build it. In this episode of the Lightcone, Garry, Harj, Diana, and Jared break down what the study really says, why in-house enterprise AI efforts keep stalling, and how startups are filling the gap with products that learn, integrate, and actually deliver value.

October 30, 202521:43
undefined - Unpopular Ideas That Became Billion-Dollar Businesses

Unpopular Ideas That Became Billion-Dollar Businesses

Nine out of ten people might tell you you're crazy. The tenth might see what you see. Garry, Harj, Jared, and Diana talk about contrarian bets — the ideas that look impossible until they work. From Uber and Coinbase to DoorDash and Flock Safety, they share how founders find opportunity where others see dead ends.

October 17, 202537:42
undefined - The 7 Most Powerful Moats For AI Startups

The 7 Most Powerful Moats For AI Startups

In the early days of a startup, speed is the best moat. But once you build something people want, how do you maintain your position and defend against the competition? In this episode of Lightcone, we dive into Hamilton Helmer’s Seven Powers framework to find out how these timeless business strategies hold up in today's world of AI startups.

October 3, 202545:05
undefined - The FDE Playbook for AI Startups with Bob McGrew

The FDE Playbook for AI Startups with Bob McGrew

Bob McGrew helped build some of the most influential technologies of the past two decades. Bob was an early engineer at PayPal, an early executive at Palantir and was recently Chief Research Officer at OpenAI - where he led the development of ChatGPT, GPT-4 and the o1 reasoning model. During his time at Palantir he was a pioneer of the Forward Deployed Engineer (FDE) model, a strategy that is at the heart of the AI boom today. On this episode of The Lightcone, he explains how FDEs became central to today's startups, why 'doing things that don't scale at scale' works, and where he sees the biggest opportunities for founders working in AI.

September 8, 202550:42
undefined - Anthropic Co-founder: Building Claude Code, Lessons From GPT-3 & LLM System Design

Anthropic Co-founder: Building Claude Code, Lessons From GPT-3 & LLM System Design

Tom Brown co-founded Anthropic after helping build GPT-3 at OpenAI. A self-taught engineer, he went from getting a B-minus in linear algebra to becoming one of the key people behind AI's scaling breakthroughs. And his work is paying off. Today, Anthropic's Claude is the go-to choice for developers, and his team is overseeing what he calls humanity's largest infrastructure buildout ever. On this episode of The Lightcone, he discusses his unconventional path from YC founder to AI researcher, the discovery of scaling laws that changed everything, and his advice for young engineers entering AI today.

August 21, 202535:56
undefined - How to Spend Your 20s in the AI Era

How to Spend Your 20s in the AI Era

AI has upended the once 'safe' CS career path. New grads are facing unemployment rates twice those of art history majors, and a CS degree is no longer a surefire ticket to wealth. At the same time, small, focused teams are scaling from zero to eight-figure revenue in months. In a special Lightcone Live at AI Startup School, Garry, Harj, Diana, and Jared discuss why it's now more important than ever to focus on building real skills, domain expertise, and agency rather than just chasing credentials.

July 8, 202538:55
undefined - Alexandr Wang: Building Scale AI, Transforming Work with Agents & Competing With China

Alexandr Wang: Building Scale AI, Transforming Work with Agents & Competing With China

Alexandr Wang started Scale AI to help machine learning teams label data faster.It started as a simple API for human labor, but behind the scenes, he was tackling a much bigger problem: how to turn messy, real-world data into something AI could learn from. Today, that early idea powers a multi-hundred-million-dollar engine behind America's AI infrastructure—fueling everything from Fortune 500 workflows to real-time military planning. Just last week, Meta agreed to invest over $14 billion in ...

June 18, 202561:12
undefined - Prompt Engineering Advice From Top AI Startups

Prompt Engineering Advice From Top AI Startups

At first, prompting seemed to be a temporary workaround for getting the most out of large language models. But over time, it's become critical to the way we interact with AI.On the Lightcone, Garry, Harj, Diana, and Jared break down what they've learned from working with hundreds of founders building with LLMs: why prompting still matters, where it breaks down, and how teams are making it more reliable in production.They share real examples of prompts that failed, how companies are testi...

May 30, 202531:26
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