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Sam Altman: "Never a Better Time to Do a Startup"

2026-07-28 · 00:48 UTC ·Y Combinator ·1 min read

Brief

Sam Altman, in a closing conversation with Garry Tan at Y Combinator's Startup School 2026 (published 2026-07-28), argued startups face unprecedented opportunity, recounted his journey from YC’s 2005 cohort to founding OpenAI, highlighted an AI safety incident that raised the stakes, and urged founders to pair ambition with responsibility to prevent concentrated AI power.

Why it matters

Sam Altman (co-founder & CEO of OpenAI) closed Y Combinator's Startup School 2026 (video published 2026-07-28) and said the ceiling for what startups can tackle 'has never been higher', tracing his path from YC’s first batch in 2005 as a Stanford sophomore.

Key details

  • Altman described building OpenAI when most doubted AGI, recounted an AI safety incident that 'changed the stakes', and warned founders and policymakers to prevent AI from concentrating power as models continue to improve rapidly.
  • He gave practical founder advice—find people who share your conviction, 'help people before you know why', channel earnest ambition while ignoring detractors—and credited mentorship from Paul Graham in a conversation with Garry Tan.
Source evidence

In 2005, Sam Altman was a Stanford sophomore in YC’s first batch, building a startup in a little Cambridge office while Paul Graham cooked the founders dinner.

Twenty years later, as co-founder & CEO of OpenAI, he closed Startup School 2026 in conversation with YC's Garry Tan — on agents, ambition, and why the ceiling for what a startup can take on has never been higher.

Transcript: https://www.ycrootaccess.com/p/sam-altman-never-a-better-time-to

Apply to Y Combinator: https://www.ycombinator.com/apply
Work at a startup: https://www.ycombinator.com/jobs

Chapters:
00:00 — Intro
00:07 — From YC’s First Batch to Today
03:04 — What Paul Graham Taught Sam Altman
04:17 — Why Startups Matter More Than Ever
06:57 — The Coming Golden Age of Ambitious Startups
09:30 — Why Startups Win During Technology Shifts
11:46 — Building OpenAI When Nobody Believed in AGI
14:45 — Finding People Who Share Your Conviction
18:05 — Help People Before You Know Why
19:43 — Earnestness, Ambition, and Ignoring the Haters
24:04 — The AI Safety Incident That Changed the Stakes
26:58 — Preventing AI From Concentrating Power
30:41 — How Fast AI Models Will Improve
36:06 — The Best Version of an AI Future
37:47 — “It’s All Going to Work Out”

Channel: Y Combinator
Published: 2026-07-28
Video URL: https://www.youtube.com/watch?v=ZIaOBAjvc38