@alex_prompter: Y Combinator CEO, Garry Tan, took the stage for 42 minutes at Startup School 2026 and explained how to build your own p…

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Y Combinator CEO Garry Tan shares insights from his Startup School 2026 talk on building personal AGI, emphasizing that context and skill files matter more than model choice, and that capturing reusable skills can multiply output dramatically.

Y Combinator CEO, Garry Tan, took the stage for 42 minutes at Startup School 2026 and explained how to build your own personal AGI better than any paid AI course. This is what he told the room: 1. The leverage is in your context, not the model. Tan watches hundreds of founders use identical models every batch. "There are 2x people and there are 100x people who are using the same Claude. Same weights, same context window size, same API. But the leverage is not in the weights." The gap between users is now bigger than the gap between models. 2. One person's output went up 400x. In 2013 Tan shipped maybe 14 useful lines of code a day as a YC partner, dead on the median for programmer productivity. "I did the math on my output, and I'm at about 400x what I did in 2013." 3. Agents run on a different working memory. Humans hold 7 things in their head at once. Every org chart and checklist ever built is a patch for that limit. "An AI agent holds a million tokens. That's about a thousand pages. Three Harry Potter books sitting open on its head all at once." You're still running your week on tools built for the 7-digit brain. 4. Markdown is code now. Tan's stack is mostly skill files: pages of plain English an agent can execute. "If you can write clear instructions in English, you're a programmer. The compiler is a language model." At YC, finance and events staff who never opened a terminal are building automations. 5. Your history is your moat. Tan's agent runs on a personal wiki: about 220,000 markdown pages covering 25 years of email, meetings, notes and decisions. "When my agent does anything, it does knowing everything I know. And that's the difference between an assistant and a colleague." No frontier model has your context. That's the one asset nobody can replicate. 6. Never do one-off work. Most people run a task with an agent, close the window and throw the learning away. Tan ends every task by having the agent turn what it did into a reusable skill file. "If you have to ask for something twice, you failed." Captured skills compound daily. Amnesia resets you to zero every morning. 7. Own your skill files before your employer does. A skill file is your judgment, extracted and executable. The only question is who controls it. "Own your skills because if you don't, your job becomes a skill file." Files in your repo compound your career. Files in the company's repo run your judgment without you. Watch it, then read the step-by-step guide on becoming an AI engineer.
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Y Combinator CEO, Garry Tan, took the stage for 42 minutes at Startup School 2026 and explained how to build your own personal AGI better than any paid AI course.

This is what he told the room:

  1. The leverage is in your context, not the model. Tan watches hundreds of founders use identical models every batch. “There are 2x people and there are 100x people who are using the same Claude. Same weights, same context window size, same API. But the leverage is not in the weights.” The gap between users is now bigger than the gap between models.

  2. One person’s output went up 400x. In 2013 Tan shipped maybe 14 useful lines of code a day as a YC partner, dead on the median for programmer productivity. “I did the math on my output, and I’m at about 400x what I did in 2013.”

  3. Agents run on a different working memory. Humans hold 7 things in their head at once. Every org chart and checklist ever built is a patch for that limit. “An AI agent holds a million tokens. That’s about a thousand pages. Three Harry Potter books sitting open on its head all at once.” You’re still running your week on tools built for the 7-digit brain.

  4. Markdown is code now. Tan’s stack is mostly skill files: pages of plain English an agent can execute. “If you can write clear instructions in English, you’re a programmer. The compiler is a language model.” At YC, finance and events staff who never opened a terminal are building automations.

  5. Your history is your moat. Tan’s agent runs on a personal wiki: about 220,000 markdown pages covering 25 years of email, meetings, notes and decisions. “When my agent does anything, it does knowing everything I know. And that’s the difference between an assistant and a colleague.” No frontier model has your context. That’s the one asset nobody can replicate.

  6. Never do one-off work. Most people run a task with an agent, close the window and throw the learning away. Tan ends every task by having the agent turn what it did into a reusable skill file. “If you have to ask for something twice, you failed.” Captured skills compound daily. Amnesia resets you to zero every morning.

  7. Own your skill files before your employer does. A skill file is your judgment, extracted and executable. The only question is who controls it. “Own your skills because if you don’t, your job becomes a skill file.” Files in your repo compound your career. Files in the company’s repo run your judgment without you.

Watch it, then read the step-by-step guide on becoming an AI engineer.

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