Garry Tan: Y Combinator Startups Growing 5X Faster – Here’s What Changed

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AI changed everything. During their time at Y Combinator, startups typically grew revenue weekly by 2-4%. Now? 10-20%! PER WEEK. YC President Garry Tan told me the reason is simple: AI transformed software from a “nice to have” into an urgent necessity.
“Before it was like, ‘Yeah, I know I need to replace my software.’…Today it’s becoming, ‘Oh. I see a demo. It’s really impressive… I need it right now. When can you start?'”

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Garry Tan

Garry Tan

Y Combinator

Garry Tan is President and CEO of Y Combinator, the world’s most successful startup accelerator. He previously co-founded Posterous, which was acquired by Twitter. Beyond the startup world, he’s a YouTuber with an eye for great design and understanding that three-act narratives aren’t just for movies.

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Full Interview Transcript

Andrew Warner: there, freedom Fighters. My name is Andrew Warner and this is a new series for me. It’s called The Next New Thing. Here’s what’s up in this interview, then an intro. Then we’ll get right to it.

How do you compete with these bigger players?

Garry Tan: We’re seeing routinely YC companies with 10 or 20 people get to 10 or $20 million a year in revenue in 10 or 20 months. That’s like literally never happened before in software.

Andrew Warner: Talk to me about how you use AI in your video creation.

Garry Tan: I took the scripts of all of the top videos that I ever made from my YouTube channel.

I’d throw it at this prompt and then it would. Generate these beautiful three act narratives. I could have a new 10 minute script ready, whereas it normally would take me like several hours. How are you changing Y Combinator? Let’s stop competing with all the other VCs. Let’s be their partners.

Andrew Warner: I’m gonna ask you to do something you’re uncomfortable with.

Garry Tan: Oh yeah. What’s up? Gary

Andrew Warner: Tan is the President and CEO of Y Combinator. The next new thing, why don’t we start with the case tech story, because I feel like there’s a, before AI for that story in AI experimentation and then once it took. Ai, everything changed.

Garry Tan: I worked with Jay Keller, the founder of Case Text back in 20 12, 20 13 when he first went through Y Combinator, and that was also my first stint at OYC as a partner.

And they were sort of doing basically, you know, web 2.0 for law. So literally what’s happening with, uh, case law and. New legislative, I mean whether it’s legislation or literally judgments, like all of the documents that the legal profession throws off, they would index, which would help you understand the law.

And um, that was really what they built for something like going on 10 years. It grew by SEO and Jake’s both a great technologist and a great. Lawyer and so he was really able to go into that market and make something based on what was happening in society and in tech at that time.

Andrew Warner: I think there was also like a q and a component of this, right?

So they could go and talk to other lawyers. We’re gonna get into how things get better, why wasn’t that enough?

Garry Tan: So things can become huge and drive billions or tens of billions of dollars in revenue every year and some things. Really could only get to, they only provide value that, you know, and then you multiply it out by all the people who need it and that might only total up to 10 or 20 or 50 million.

Like that’s, you know, weirdly quite common. I think a lot of founders are worried about that early, but my sense is maybe it’s premature worry because embedded in that is also the case text pivot that, you know, they got users and an understanding and a useful corpus of data. All of which turned into a tremendous moat for them, literally right at the correct moment as technology itself shifted, uh, something that could only make, you know, tens of millions a year could suddenly become something that could make hundreds to billions of dollars per year.

And, and that was, uh, the dawn of the large language model in 2023.

Andrew Warner: Tell me that story of like how they came up with that.

Garry Tan: The cool thing about YC was that Jake basically had access to early versions of chat, GPTG, PT three. These were sort of toy earlier versions of it, and they were certainly astonishing and interesting, but they were not useful yet because the LMS actually would just.

Uh, hallucinate. They were early in the jour in the journey, so there wasn’t enough data. Um, the per the number of parameters, the sort of size of the models was too small. And that’s what Jake found as he tried to use large language models to do a lot of the things that you and I take for granted today.

Uh, right at the dawn of this stuff, it was, um, not that useful. You know, it was sort of a horseless carriage, if you will. I see. Uh, an oddity, you could look at it and say, well, maybe this will work. But it’s mostly a toy and nobody will actually use it yet, possibly, ever. Right. I, and certainly when I first saw it, I’m embarrassed to say like, uh, even as an investor and technologist myself, it’s like that’s.

That was the consensus at the time. And, and at that moment, at the dawn of large language models, that was correct. Like you couldn’t use it for useful things yet. Jake, being a great designer, engineer and lawyer, he tried really hard to make it work and it would hallucinate and you know, he also was operating in an area that, uh, in particular.

Really had high sensitivity to hallucination. You get one thing wrong and you’re fired as a lawyer. So, you know, his, his particular space was fascinating to me because it particularly could not withstand any hallucination. And as technology curves and cost curves go, this was something that I think surprised everyone.

Um, if you were Greg Brockman or. Dario Amide, uh, at that moment you started in, internally, you were talking about the scaling laws. And that the loss function was going down as log linear to the amount of, uh, data and compute you were putting in. And that was an astonishing realization that like there was a path to potentially a GI or a SI.

Um, the rest of us on the outside had no idea. And I think Jake also didn’t have any idea, but because he was in the YC community, OpenAI itself was a spin out from YC research by, uh, Sam Altman.

Andrew Warner: So then. He starts adding this on once it’s ready, once it’s ready for lawyers. What was the original use and then how did it take off?

Garry Tan: I believe he basically started using it for, um, being able to answer que specific questions about legal cases. Um, okay. And once he got access to GPD four, he realized that if you. It cut down the size of the question too small enough. Mm-hmm. Um, and today we call that context engineering, but at that moment, he realized if you asked a very long ranging question, um, like, is the defendant guilty or So, you know, it’s like such a big question that, uh, even GPT-4, I mean, you could argue that uh, some of the reasoning models today are actually much more capable of doing it.

But back then you didn’t have multi-stage like test time, compute reasoning. Um. At that moment, uh, if you chopped it down to a bite-sized chunk, like you gave it some amount of, uh, context that a human being given the same context and the same prompt would answer in a certain way. He found that he could.

Uh, you know, given inputs and outputs, have output that was usable, useful and reliable, and not a hallucination, but it required you to chop that down into, um, a particular small enough step. I think of Jake a little bit like the first man on the moon. You’re like, oh. You can chop it down and then you should actually have tests for a bunch of different inputs and outputs, and you should have evals that actually, um, give you a sense and certainty about specific tasks.

So you would sort of do tailored time and motion study of exactly how a lawyer might, you know, a lawyer often has to do a timeline, for instance. Okay. So what he would do is like chop it down into what would I do as a human being? Well, I would start skimming. Each, um, each chunk, whether it’s a sentence or a paragraph, and then I would try to score it based on whether it was, uh, noteworthy or not for do I need to put it in a timeline or not.

And so you can imagine, I mean, he’s like sort of. Very logically creating some of the first, uh, ways to do prompt engineering.

Andrew Warner: So he’s taking this technology and he’s finding a way to make it useful by thinking almost like a human being Exactly. A little bit, bit like a machine. And then coming up with the answer, he now has a better tool.

That gives me two questions. What happened to the business? Did it immediately go from like sales cycles of, I think I saw you, you say, in a video a year or more to now? A month or less.

Garry Tan: I guess the really interesting thing was, um. You know, he built the first versions. It could do like, let, let’s say it could do a, um.

It could come through thousands of pages of documents and give you an accurate timeline of events, for instance. And that’s something you would hire, uh, a legal analyst or associate to do. And it would cost thousands, tens of thousands of dollars, right? So instantly

Andrew Warner: you can say, I will save you this much money direct to the bottom line.

Do you wanna buy? And it’s a, becomes an easy answer.

Garry Tan: I think that was the feat of strength. Like they took the corpus of, uh, Enron emails, for instance. And, uh, I think the example Jake likes to use. Is you could ask questions about emails where there, you know, it involved like high nuanced things like. You could ask it about I ironic jokes that the, the CEO had made and it would be able to like discern like, oh, they made a joke about their fraud in this particular way, and it would like find the reference for you.

So you, that would, that was sort of the demo that they would show to lawyers and it would just be so astonishing that people would say, uh, I need to buy it right now. This is the future. And it turned out to be very, like not just a little bit Correct. I think I’m, I’m still astonished day to day, especially as new model.

Releases come out.

Andrew Warner: That explains why. Every time I see what it does, I will see and it detects sarcasm, and now I get why that comes up. Then the other thing that comes up for me, Gary, is we keep hearing that. Maybe it’s useless to create anything in this space because the big companies are just gonna take it on.

Right? You can imagine a world in which chat, CPT does all this, or Google’s, Gemini, and it’s consumer grade products that people are using to figure out what to do with their, with their weekend plans, that it’s natural for them to then ask the same question for, it’s not an unfamiliar tool. How do you, when you do this, how do you compete with, with these bigger players?

Garry Tan: Yeah, absolutely. I mean. I guess I have two answers. One is obviously the one that, um, we’re, you know, at Y Combinator we, uh. You know, we believe in that. We see it happen. Like we just see small teams of people go out into the world and create, you know, they, they’re obviously using these incredible frontier models, but they’re adapting them to the very specific things that real people in the economy actually need.

And so they’re not necessarily glamorous scenarios. Uh, they’re customer support scenarios for. Um, HVAC consultants, for instance, this fragmented industry, but a very big industry. Um, and they’re taking, they’re building software. You know, there’s a company called Avoca that we worked with at yc. They’re, they’re doing exactly this customer support for hvac, but V one of it was basically ServiceTitan.

So ServiceTitan is a incredible public company, but, um. Yeah, they’re basically software and, uh, HVAC consultants and firms spend about 1% of their dollar wallet, you know, for every dollar. For every a hundred dollars they bring in, in revenue, they spend about a dollar on software like ServiceTitan, but they spend five or $6 on actual people picking up the phone and doing scheduling and doing all that stuff.

So the wild thing that we’re seeing is that if you. Like scope what you’re doing and make the thing that is perfect for that set of people. Um, there you can’t just take chat GPT and have it do this type of work yet. I mean, it’s entirely conceivable eventually, but it hasn’t happened yet. Um, and while that is still true, people are sort of building the next service titans.

And then the wild thing about it is, you know, ServiceTitan is incredible business, but then you could have. Something that expand, takes over that 1% and then expands like five x or six x bigger. So that’s sort of why we’re seeing routinely YC companies with 10 or 20 people get to 10 or $20 million a year in revenue in 10 or 20 months.

And that’s like literally never happened before in software. You know, uh, the, the average rate at which YC companies grow their revenue during the YC batch, which is a 12 week process. Is, uh, 10% per week on average. I mean, some of the batches have been growing 15, 20% a week, but it’s been at least 10% a week for more than a year.

And so there’s something in the water, like there’s something happening and what was it before?

Andrew Warner: I thought it was 10% a week through going,

Garry Tan: oh no, you’d have one or two companies grow 10% a week. That was like the aspirational, ah, like if you could do it, that would be what good looks like. Okay. And then now on average, everyone does that.

Yeah.

Andrew Warner: So it went from, on average, one to 2% to 10 to 20%.

Garry Tan: Yeah. I, I think the average was probably close to two to 4%, and then now it’s consistently 10 to 20%. We, and this is in revenue? Yep. In revenue. So, and you know, it all goes back to the case text story, right? Like before it’s like, yeah, I know I need to replace my software, you know, oh, I’m still using SAP, or I’m using whatever I was using.

I’m still using spreadsheets. Like it’s, you know, having better software. Was much more of a nice to have, like it’s something that you felt like you needed to do, and then today it’s becoming, um, oh, like I see a demo. It’s really impressive. Uh, I could see how that would hit my bottom line or basically create a better product or service immediately.

Um, and then, yeah, I need it right now. When can you start? Right?

Andrew Warner: I totally feel that. I feel it in the air. Then it kind of brings me back to the conversation that I had recently with the founder of Read ai. This is David Jim, and I said, when I do sales. I want a note taking app that keeps guiding me towards closing a sale, or at least analyzes me afterwards based on a sale.

That’s a great

Garry Tan: scenario.

Andrew Warner: Great example. And he goes, Andrew, that’s not the way it’s gonna work in the AI world, what you’re gonna have is one tool, one notetaker. He’d like it to be obviously, read ai. That does everything. And if you say I’m a salesperson, it’ll customize some of the feedback that you get for sales.

To me, if I even have to customize it, it’s an extra step. And so I’ve been seeing this, Gary, in conversations with, with builders. Some are saying AI doesn’t need to be customized at all. And I see you squint as I say that. So I think that maybe you have a strong opinion here and others are saying absolutely what you are is go down to the level of hvac.

Garry Tan: Yeah, I, I think that we are sort of. We might be at a moment where it’s too early to tell. Obviously the stakes are very high. But, um, if we got to a point where AI is truly, you know, not just a GI, but a SI, it can like far exceed that. What hu of, of what humans can do. All bets are off at that point. Right.

Um, so I don’t know. I, I feel like this is almost, um. Like the reverse Pascal’s wager for AI a little bit. He is like, well, uh, it’s entirely possible that a SI happens, and you know what some people think will happen happens, uh, but you know, the society that we will need to live in will be reconfigured like in such a radical way that, um, you know, will there be jobs?

And then at that point, the hope is that, um. If, if we have, uh, actually access to clean and um. Clean solar and wind, and maybe even fusion with helion and things like that. Um, over a, you know, 30, 50 year timeframe like society can reconfigure into one that’s really focused on abundance when you’re talking about startups and competition and markets, like we still live in a market economy that is driven by.

You know, should I buy X or Y? And, you know, I I think it’s like a, you know, certainly in some sense a flawed system. On the other hand, it’s certainly the best system that we have, like the invisible hand.

Andrew Warner: I, I wanna know which direction you think, but I’m looking at the list of companies that you at YC have helped launch just in the fall of 2025.

What I’m seeing here is there is a focus, it is companies like, uh, where is it? Um. Market silver bullet for trade compliance. To give you an example of what I see, I see another one, Bluma Automat, automating short form video ads at scale. So it, you really are still saying, I’m going to be focused narrowly on a vertical.

Am I right or am I just looking at a handful and drawing? I mean, this

Garry Tan: is also about like making individual founders successful. Right. I guess famously, I think at some point Sam Altman came out and was, while working on open ai, he was, you know, sort of rethinking whether like the classic, uh. YC advice was correct.

I had an, I mean, obviously we’re friends and we like, hadn’t, like we had some exchanges about it. Uh, you know, I think that he’s sort of changed his tune a little bit in that he’s seen now that like ai, like all the startups out there using his APIs are sort of his commercialization arm and that’s not a bad thing.

Right. Um, there was a time when I think he said he just wasn’t sure if, um, all of the advice. Around make something people want and like being lean was quite the right thing. And then to me. I think Looped had to be lean. You know, a, a lot of people who start really huge companies had to start companies that were much more specific.

Elon Musk had to start zip two. I think the reframe for us at YC is that we actually want people to be, uh, directly in control of their own destiny to the extent they can. And then can we do that? When you start a company,

Andrew Warner: the thing that that was exciting for me is like. I’m looking, I’m holding here. This is, uh, well told, it’s a mug by someone who I don’t think 20 years ago could have created a mug.

It’s beautiful. Mm-hmm. It’s got like the city that I, that I’m in, he sent me a bunch of them. Gary. One with every city that I’ve done Mixergy in, which has been a lot. Oh, cool. Um. And I think about him a lot because that kind of entrepreneur couldn’t have existed before, but now they do. You are a video guy.

Beautiful videos. You always had good taste in video. I don’t think you would’ve existed, let’s say 20 years ago because it would’ve been forever to videotape, to edit, to put your spin on it. Do you think the same thing now is gonna happen with software, that more people are going to be able to create it and it’s going to be sustainable or it’s gonna give them enough money to sustain their lives?

Garry Tan: Absolutely. I mean, that’s certainly my hope. The reverse is like too dark to uh, you know, I, if anything, like, that’s some of the reason why we spend a lot more time in dc.

Andrew Warner: But Gary, even if it’s the same, like I, I’m wondering that because of all the vibe coding apps, I keep seeing vibe coded apps from people, will they turn into something significant or is it gonna be like most of the YouTube videos where there’s no business from it, it’s just fun to create?

Or does that even matter to you? I mean, my

Garry Tan: argument would be, I mean, especially vibe coding. Um. The Claude Code team apparently writes 95% of their code is written by Claude, which means very directly that each engineer working on Claude Code themselves is doing the work of 20 people. That’s sort of direct quote from a recent like Lenny podcast with, uh, one of the co-founders.

And so I think that that’s actually the good news. You know, that I think if you look at tech across like 10, 20, 30 years, um, it’s actually that like. The access to good software is incredibly inaccessible, and one argument I often make is if you use an iPhone. You probably have hit, uh, bugs in Apple Calendar and it’s like very frustrating because Come on guys, like this is the built in thing to Apple, the, the iPhone.

Like the iPhone is the Apple is like one of the most dominant tech companies in the world. Mm-hmm. And yet they cannot find good enough software engineers to fix the basic bugs that still exist in Apple Calendar. And so that’s been true for time immemorial. If that’s true for Apple, how could you possibly imagine an HVAC person ever getting access to good software?

And you know, that’s the difference today. It’s like, hey, you can have it now and it can be customized to you. And if anything, like the funniest thing is if AI and Code Gen gets even better than it is today, um, people can, like, that might be one of the vectors by which, uh, HVAC people like compete against each other.

You, you might. Even choose the one that has the best status and the, the best, um, the best app that like, can tell you exactly when things are done or if someone uses, they use rept to create software or you know, or maybe there’s a vertical version of rept just for workflow for managing your workers, right?

Like anything that you can imagine, it could actually. Create a better product or service. And then net net, what this might mean is that just like everything that we get in, you know, our day-to-day lives is just better, faster, cheaper, and then more is more actually, like, it’s actually good that, um, I mean sometimes like to, to link the abstract to the specific, I’m like, a good example of this would be I would love for, uh, every apartment in San Francisco, for instance, to have dishwashers and, uh, washing machines, right?

Like. In a weird butterfly effect sort of way. Like if you think about, um, people doing better work, uh, more meaningful work, doing it, uh, on time and at the right time for a better price. Like the sort of, that’s how the market creates like higher, um. You know, basically higher standards of living. Right? And so that’s sort of like the, like, what I hope is, and what I think will happen is that as long as people can start businesses, uh, they can make better choices, they can make better products.

Um, you, this is actually a much bigger engine for making, um, our day-to-day better.

Andrew Warner: You’re imagining a world where instead of having HubSpot and Salesforce. And close and a couple of others that are really big. HubSpot, Salesforce. Then you got the mid, you’re imagining a world where there is a CRM for podcasters like me, A CRM for hvac.

In fact, multiple of them. And so the revenue of Salesforce, I imagine, would then be spread across a bunch of companies and there would be a bunch of companies whose founders are not as wealthy, but they are making a strong enough living. Yeah. That’s the world you see.

Garry Tan: That’s right. And then on the flip side, like.

Even if they, well, I realize like, you know, that’s also often not how it works out.

Andrew Warner: I, I also wonder if that’s great for you, because what you’re looking for at YC is not to have a bunch of small companies where the founder can live a good life, maybe buy a second home, but where they’re building the, uh, the Mark Benioff size successes, right?

Yeah.

Garry Tan: That’s right. I mean, I guess YC is funny because even if someone doesn’t end up making the Salesforce size thing, like they often sell their bill. I mean, that was true for, um, Posterous. My, my YC startup ended up selling to Twitter. My, our YC batch mate. Um. Back type. Uh, it was Chris Golda and Mike Montano’s company.

They sold to Twitter. And then the, that team ended up creating Twitter ads. I think like our, our old teammates imposters ended up making the twi the, you know, uh, making the first Twitter, uh, Twitter mobile apps and or working on that team. So, I don’t know, there is like a creative destruction aspect. And then on a sort of day-to-day career basis, like it’s better for people to, uh, become founders.

Learn how to create things for other people. And then either, you know, you manage to get product market fit and you figure out a moat so that you can be, you know, as big a company as possible. Or even if you don’t like everything about your life and career, moves ahead by five or 10 years faster than it would’ve been.

Or, you know, we have lots of friends who, instead of starting companies, they stayed at Microsoft and, um. It’s better to be directly in the face of real users and shipping real code and product and then learning how to support that. Um, ’cause that’s just actually valuable. And I think there are lots of other jobs out there that are, uh, slow moving bureaucratic.

I actually sort of wonder, like I was hanging out with, uh, another investor who sits on a lot of boards. Um. And we were thinking like, man, there’s a increasingly like a lost generation of people who work in big tech. And, uh, you, I think, um, well even at yc, like we are seeing, um, the rate of 18 to 22 year olds at YC is up by more than a hundred percent year on year because, um, the rate of 22 year olds to 25 year olds is up about 20%, and then the rate of 25 to 30 year olds is actually down.

By like 10 or 20%. Why? And a lot of those people started their careers actually during Zer. So they’re actually sort of, you know, hanging on for dear life at, um, both startups and Fang and uh, those are also like, funny enough, some of the people who are the biggest AI deniers. Like they just don’t believe that, um, the sort of revolution is happening.

Andrew Warner: You’re saying they got such a good job where they were, they don’t wanna lose it and go and kick off and start something different. Yeah. Got it.

Garry Tan: Whereas the, the young generation, like they’re incredibly hungry right now because Fang is not hiring like the, the Zer jobs are not there,

Andrew Warner: and a lot of them I think are, are playing more with this.

It used to be the playing startup was fun. Then it became, playing YouTuber was fun, but playing startups felt like now you’re becoming the man, but now you see lovable and cursor and all these tools and you say, okay, they’re making it more accessible. Let’s play with it. And then you, you lean and create something.

I told you earlier that I would give you a great example of Y Combinators, like Inner Access, David Rogan Weiser. He is a guy who started out with proof, a thing that was gonna help e-commerce companies. And I love after he got into Y Combinator, he goes. What we’re gonna do is we’re gonna revolutionize e-commerce.

We’re gonna make every, every Shopify store customized based on who the person is, because we’re gonna have a tool that goes across all of them. That’s cool. I go, boy, why? Combinator really gets people to think beyond the tool. Before he had a little fricking widget, now he has this changing the whole thing, and then suddenly he created what became jas.

And it, it’s because he got to see the original Open AI tools and he said, okay, I gotta pivot everything. We’re gonna create an ad creation tool that uses ai and then he changed it to, based on user needs to create a writing tool for everything that is the inside Y Combinator access. Right. Absolutely.

What is, like, how, how do you stay in touch with people to keep guiding them after the time that they’re in the program?

Garry Tan: Oh, well, I mean, these days, uh, everyone who gets into yc, they have one particular primary partner and, um, obviously when you apply, it goes into sort of this giant pool. But then, uh, we have 15 equal partners on the investing side who like I.

Uh, are in, we basically are in there trying to fish like we’re, you know, in there with our nets. I’m like, let’s, uh, take a look. Like, let’s watch the video, let’s try the demo. Let’s read everything about the founders, what they’ve done and what do they know about their users, about, uh, the product. And then we try to fig figure.

Well, who do we meet? And then anyone you choose, you meet. And then when you meet, it’s up to you, uh, whether or not you accept them. And then when they’re in, like you always have one, at least one person who’s sort of like your investor, uh, at yc. And that even after the company, you’re still

Andrew Warner: getting on calls with them a year or two years later.

Garry Tan: That’s right. Okay. So, you know, I basically, I think the bad version of thinking about YC is like, oh, it’s like a summer camp and you have a camp counselor and you never talk to them again. And then the good version of it is like, oh yeah, YC partners are, you know, actually renamed their title. It’s like not group partners anymore, it’s actually general partner and we’re actually investors invested in the future of the company for the life of the company.

Right? It’s like having your best angel investor who is there for you all the time. And then that’s. For many years. So basically on our end, it, uh, the best thing we can do is like, understand the business, understand where the founders are coming from, who their customers are, and then just ask questions.

It’s like, could this be bigger? You know, what’s the most interesting thing that you’ve learned about your customer? What are things that. Uh, get people promoted. What are things that are resonating? Let’s double down on those things. Like, let’s be super frank about what we’ve tried. That doesn’t work. Like if we’re spending money or resources or, you know, people time or your time on it, maybe we, you know, we have that or set that to zero and anything that’s working, like, let’s double down on that.

And then you’re just having someone who’s outside of your day to day who, uh, could be a sounding board. I mean, there’s that. And then honestly. The, the batch itself is perfectly designed to help you have. Not just your partner, but dozens of other people who are all like the outcome of a one top 1% process.

Uh, and you, they, they sort of help each other. Honestly. I mean, that was true for me. Like when I went through yc, uh, we got to know the founders of Heroku and they helped us raise our seed round and, uh, gave us a lot of advice about scaling. And then what’s funny is about like six months after we went through yc, they came to us with a problem, which is like we were becoming one of the biggest rail sites on the internet.

And, uh, they were worried that they were having some sort of scale scaling issue where they thought that our code base might not be able to run on, uh, on Heroku. Mm-hmm. So they said, Hey, would you guys, this is a big ask. Would you be willing to give us your. Uh, GitHub access and code base, and it’s like, can you imagine like meeting someone at TechCrunch Disrupt and like asking them for the code base?

Like you’d never do it. But you know, at YC they gave us, uh, so much advice and we had really become friends with them. We said, you know what? Like, yeah, here it is.

Andrew Warner: Which company was it that you gave the code base of

Garry Tan: Heroku?

Andrew Warner: Uh, no. Which, what was your company that you gave? Oh, post. Yeah. Post. Oh, post was that big.

Yeah. I’m glad to hear it. Yeah, I, I told you before we got started, I freaking love post. Oh yeah. I’m still like, I feel like that was such an elegant app. It allowed you to post from anywhere, so it encouraged you to create a lot. Alright. Um, talk to me about how you use AI in your maybe video creation.

Garry Tan: Yeah, absolutely. I mean, what one of the things that we’ve been learning about, I mean, I, I think a lot of it came from talking to Jake about how he thought about breaking down the problem. Um. You know, the cool thing about prompts is that it’s actually an intelligible version of fine tuning the model. Um.

One of the things that I did recently, I took, uh, the scripts of all of the top videos that I ever made from my YouTube channel, Uhhuh. And uh, I just fed it in and the prompt to Gemini, ’cause it had long context at the time. I think a lot of other people have long context too, but Gemini 2.2 0.5 was extra good at this.

Uh, you could feed in a bunch of, uh, a bunch of scripts and you know, say, help me extract. The most salient features that are common across all of these scripts. Mm-hmm. Um, and it actually extracted out, like, here are a bunch of the things that you did in those scripts that you can, that you know, uh, hook hard, hook, hook fast, have an inner game lens.

Think about what the founder and creator psychology is. Um. Have sort of like a sentence rhythm of like a claim, a brisk explainer, and then a vivid example, and then a takeaway, right? And like, so these are all things that like, you know. It, it just sort of figured out like, this is sort of what goes into a script that performs very, very well for you.

And then I took that, and then I’m coming up with sort of ideas for new YouTube videos all the time. And so then I would start, uh, I, I took the prompt from this. The prompt is basically given a set of ideas, create, write a script in this format. Um, and then I started just taking ideas. Uh, you know, maybe I see it on X or I’m sitting with the founder and we’re talking about, uh, you know, whether the, whether to pivot or not.

And I just like, could just scribble down, like, here’s a bunch of notes. Here’s like a set piece idea. Here’s like a, um, a tweet or a video clip that I want to use, and then I throw it at this prompt and then it would generate these like beautiful three act narratives that like, look like. It was almost as if I, you know, it would take me.

Normally probably like two, three hours to write out like the script for, uh, at this quality. And, you know, I would have it. And when it first did it, it was like not that great. But, um, iteratively what I would do, and this is something that anyone can do, is as you use the script, like you should like label it and number it and, uh, I would use the prompt, I labeled it, and then I gave like what I wanted the next video to be about.

Mm-hmm. Um. And then I would work with it. I would like edit the, you know, I would often tell Chachi Peti to use a canvas, and I would go in and you sort of like instruct it. Similar to I if I had like a junior writer who was writing for me Uhhuh. And so I would like sculpt it into what I wanted and then.

Uh, you know, you’d have the output of an incredible script that you could have, like in basically on my phone, like in between on, on a commute or something. I could have a new 10 minute script ready where, whereas it normally would take me like several hours of just like breaking my brain to write it out in my voice.

Did

Andrew Warner: you edit this or is this like a bad first draft that you then get to go and put your spin on? Or are we talking about 80% there? Oh, it’s usable.

Garry Tan: Like, I mean, usable, basically. Usable, yeah. Well, I mean. The, initially it was bad. And then, um, what I would do is do this process, get the script to where I felt really good about it.

And then at the last point, I would say, given, uh, what we did in this session to improve the prompt output, the next version of the prompt. And so now I’ve done this about 20 or 30 times. And so now I have a thing that has all of the different tricks. Like I even, you know, it, it started off as just like, here’s a format, here’s uh, sort of specifically how.

A good video might work. And then now what’s crazy is because of the, once the reasoning models came in, uh, now I can actually give it a grab bag of tricks. Some things that, um, I mean what’s funny is like it’s not entirely the AI coming up with it, it’s not entirely me coming up with it. Like in the course of co-writing something like 10 or 15 scripts, like it’s figured out all of these grab bag of tricks like a, a pop culture cold open, a 15 to 45 second.

Film TV news clip that mirrors the thesis be before the hook. Like, uh, an authority pillar, like I love quoting Paul Graham or Alan Watts or Naval Ravikant and like, and it’ll find one

Andrew Warner: of those people and maybe you’ve confined it to the type of people you want.

Garry Tan: Yep.

Andrew Warner: And I’m gonna ask you to do something you’re uncomfortable with.

Garry Tan: Oh yeah. What’s up?

Andrew Warner: Share this. Can we Oh, sure. Can we give one of these sessions to our people?

Garry Tan: Yeah, absolutely.

Andrew Warner: Okay. I’m gonna follow up with you. I would love to be able to give that out

Garry Tan: link in the description for, for, uh, for my prompt.

Andrew Warner: Yeah. I’ll put it up on, on Exxon, everywhere else. I love seeing how people do it.

It’s so, it’s so interesting to see how other people have these conversations. There was a period where OpenAI was trying to make these more public, and I get why they wouldn’t, people were revealing too many things, but to see how other people prompt is a real eyeopener. Um,

Garry Tan: yeah. And what it’s taught me is like, I think that ultimately.

Almost any and thing that like you rely on humans for, like you could probably do better. And these things are not writing it for me, like they’re helping me and I’m working with it. So it’s a little bit more like a co-writer. Uh, I. I still think that if you just say like, write me a script, and you give it no direction, it’s gonna be bad.

Like, you know, you, you as the writer or creator, um, ultimately have to inject your voice into it. Like, and if you don’t do it, then, then it’s slop.

Andrew Warner: All right. One of the things that I’ve noticed that you’ve done different with Y Combinator is you added this sense of, first of all, video first. You’re damn good with video.

Always. Were with visuals. You added a sense of cool, like I really thought once you started leading Y Combinator that you were gonna dress differently. And then I’m looking at you and I thought for, he’s not doing these videos anymore. Now someone else is gonna do the videos. He’ll hire someone. But you’ve got these shoes, these sneakers that are on point all the time.

You always have, like, even for this conversation, I don’t even know if you know that I’m publishing the video. ’cause in the past I didn’t publish our videos. This I’m, I’m publishing, but it didn’t matter. You set it up beautifully for me. What am I not seeing? This is the, obviously the exterior stuff. This is an indication of like you modernizing the, the way the Y Combinator communicates.

But what am I not seeing underneath the surface?

Garry Tan: Yeah, I mean, I guess, uh, I felt really, really inspired and just like sort of filled with fire actually by, uh, one of our board members at YC is Brian Chesky of Airbnb. And so he was part of the selection process when they were looking at candidates for this job.

And uh, the second I got in the role, like, I mean my board is, uh, Brian, and obviously. Paul Graham, Jessica Livingston, the original founders, uh, Carolyn Levy and, uh, har Tagger has actually just joined as a observer recently. Okay. And so, yeah, these are sort of like the stalwarts of yc and then they basically just really enabled us to, I mean.

Think about it from first principles, like what does, I feel like YC 1.0 was the creation of Paul and Jessica and Trevor Blackwell and Robert Morris. I mean, the original founders of YC really set. Like the, the vibe and the chorus and like what YC is about, and they built it up. And then the second decade, you know, was really with Sam, and Jeff and Sam created, he took Google and turned it into Alphabet and it was, you know, a lot of different competing things that all like, sort of raised the, um, ambition level of what YC was.

Then meaning like the nonprofit

Andrew Warner: aspect and all those things, these are different divisions. Research,

Garry Tan: research, you know, working on. Continuity as a separate fund. Like all of these things basically broadened the aperture of like what YC was. Um, okay. And then in full transparency, I feel like when I came back, like we explicitly decided as a board and as like the sort of steering body of what YC was supposed to be, we said, you know what, like, alphabet is great, but we’re gonna go back to being Google.

And, uh, it’s easier, it’s like a thousand times easier to be. Google than to make alphabet work.

Andrew Warner: What was one of the hard things to cut back on?

Garry Tan: Obviously, I, what’s great is like all the people sort of involved in continuity are working on their own funds and they’re doing great and, uh, we think the world of them.

Um, but yeah, that was probably the hardest thing. You have a great team that’s executing on a strategy and then at some point we, we realized actually like. YC should be about the, the initial batch. And like, rather than treat like group partners as kind of like camp counselors, it’s like, oh no, no. Those people are actually the partnership.

Like we’re an equal investing partnership similar to Benchmark, but we have 15 people. Like that’s actually the core of what YC is. And then we also have incredible staff. We have the world’s best media team, we have the world’s best software team. And um. Yeah, those are sort of like the pillars of yc and then it’s just so much simpler.

It’s just like, let’s do what we uniquely do the absolute best. Let’s stop competing with all the other VCs in, you know, let’s be their partners actually. Oh,

Andrew Warner: what was the problem with competing? When you say competing with other VCs? Uh, founders would raise money from Y Combinator. Yep. And then you’d say, okay, and we can also give you the next round from Y Combinators.

Yeah. And then what does it mean

Garry Tan: if you don’t get it? And

Andrew Warner: that was always an issue if you don’t get it, that was always like a ba, a negative signal potentially. What other problems were there with keeping that on? ’cause otherwise it seemed like it made senses the one thing to keep.

Garry Tan: Yeah, I mean, some of it is, uh, you know, partners really.

You just didn’t have the expectation that you would stay in touch with, uh, founders and then as a result there was sort of like a throw it over to the other team.

Andrew Warner: Why are these two connected? Whether you’re investing con, uh, with the continuity, whether you’re getting continuity investment or not, why shouldn’t you continue with the partner that you were working with in your batch?

Garry Tan: I mean, I, that was just like a different vibe and you know, when you have a compartmentalization, I see, um, the bureaucracy might come along and just say, well, like your time is for month zero to month four. I see. And after demo day, it’s someone else’s job. And you know, it’s actually easier to do it that way, but I don’t, I think it’s less fun.

And then it certainly doesn’t allow us to support founders the way that I really want us to. ’cause being a founder is so hard and, um. The, the most important thing actually is that, uh, you don’t really know who to trust. And so if you have at least one person at YC who you know has taken an oath to look out for you and take care of you for the life of the company, that’s actually, I mean, that’s better than I think 90% of people who start startups, period.

Andrew Warner: I’m thinking about something like whisper flow. It’s on my computer. You know what it like lets you dictate into your computer?

Garry Tan: Absolutely.

Andrew Warner: Like what other rappers, if I were to pick a, a bad phrase, what other rappers are there that would develop or could develop in some?

Garry Tan: Yeah. I, I think there’s like infinity, um, sort of off the beaten path, like underserved verticals.

Like HVAC is just one of like, I think like accounting, compliance, audit, like ta I mean there’s like infinity things that, um. I think are just where there’s brass, there’s gold. And so that’s sort of the most obvious, the thing that I think is still non-consensus, but I hope is correct. And, uh, now sort of the moment to start working on it is actually consumer.

So, and you know, actually it’s, it shouldn’t be so non-consensus. You know, chat g PT itself is actually the best and most astonishing consumer launch of any product. In the history of products actually, and it was impelled by by ai,

Andrew Warner: but what do you see in consumer? ’cause I am always afraid of consumers.

They don’t make rational decisions. They fall in love or they don’t. Where with a business, you know exactly how you can get to them. You know exactly how you can make the message stick.

Garry Tan: Yeah, I mean, I apparently one of the biggest, uh, behavior changes in Chachi PT recently, for instance, is that people sort of treat Chachi PT as a CA counselor.

Or as a psychiatrist or therapist. That’s true. And, uh, you know, I, I think that I’m pretty psyched about things like my buddy, my YC batch mate, Chris Bader, he has a company called Rosebud ai, which is a diary. I know, I’ve seen your fricking

Andrew Warner: videos for it. I, I’m a paid user of it. I’ve got some thoughts. Go ahead.

Garry Tan: I, I think that that’s super interesting. On the one hand, a small startup of two or three people, and, uh, on the other hand, like people are paying for it. It’s very high retention, and so it’s growing. Uh, you know, I, I think it has, uh, similar vibes to, um, Evernote. Like, there’s things like Evernote that grew, um.

Very organically for a really, really long time, and then suddenly everyone’s using it. Right?

Andrew Warner: Here’s what I love about Rosebud. My therapist actually said, go sign up for Rosebud, so I signed up. It is like it remembers what you’ve done before, and so it’s actually, this is actually a really good indication of the kinds of consumer products that could make sense because it’s replacing.

A more expensive thing, which is a therapist, and doing it in many ways better because it’s more accessible. I can’t call up my therapist at any minute and say, come sign up. It’s David Coates, by the way, who’s, uh, one of the cons, one of the advisors of the app. The, the thought that I have on it is it doesn’t have the Gary Tan design magic Look at the text and the way that you read it, it doesn’t look beautiful.

Look at the voice interaction with it. It doesn’t sound like an 11 labs voice, it sounds like. It’s thinking for a moment, and then it’s talking to you like a robot and then you talk back to it. I need the Gary Tan Magic, like the fact that you would wear sneakers in a fricking podcast that no one could see in they’re laced just right.

That level of detail to design needs to be applied there. ’cause the brains are good. That’s my thought. Well, I think

Garry Tan: Chris Bader’s got it. That’s actually fantastic feedback for him. I mean, that’s the great thing. It’s like. Uh, that could be fixed tomorrow.

Andrew Warner: I asked someone for a business coach. They go into 11 labs and they created a, a, um, an agent.

This is a guy named Jeff Shank. He said, okay, let me show you how I can do it. I can create a business coach for you. He did it overnight. It is good. He’s making it better by adjusting it to me. Do you think one of these tools can, that’s built on using, let’s say, 11 labs agent feature. Do you think they could become a business that eventually ends up on Y Combinator?

Are we looking at stuff that’s always gonna be too small?

Garry Tan: I mean, honestly, uh, we, we would, I, I think that even founders who, uh, have access to a lot more capital or better resources, um, we’ve been working with a lot more alums in the batch now, Daniel Kahn, for instance, who create co co-founder of Cruise Automation, he’s in the batch.

And, uh, I’m pretty excited about it because whether it’s like your first time or your fifth time. Like being next to a bunch of people who are moving extremely fast like that. That’s probably the biggest thing that second time or multi-time founders maybe struggle with is that like the next time you have plenty of resources.

But the one thing that’s actually the most important is time. And so there, there’s almost the only thing that matters upfront is like, can you speed up? And then I, I do think it takes a village to actually properly speed up.

Andrew Warner: I, I do admire that that’s always been a Y Combinator thing, that startups equal fast growing companies, and that’s the, that’s the difference.

But Gary, what I mean is. Can these apps that are essentially wrappers, that are essentially built on something else turn into real businesses. I guess in, in your recent podcast, someone made the point, point that these are basically MVPs and once you get the proof that this works, you have to really have real engineers.

And maybe they’re using cursors, so they’re much more Oh yeah, advanced. Without, then they would be without, but they, it’s not enough to just build these simple tools.

Garry Tan: Ideally, the founders themselves are actually really cracked engineers and then, you know, you. You basically 20 x yourself by, um, being able to use these tools.

But if you actually learn how to prompt and you learn how you know it. You would literally be a 100 x engineer, right? You’d be a 200 x engineer. You take your 10 and drop a 20 on top of that and your 200 x. And that’s like the most powerful thing in the world, is to be able to do so much more with way, way less.

Um, and then that’s why this is sort of the golden age to be trying to create products for other people. Like I, you know, I think it’s like astonishing. And then it’s sort of. Yeah, it’s, it’s, it’s sort of like there’s a, there, there was an earthquake, you know, you’re walking around in the, in San Francisco and there’s a skyscraper chopped in half, and like all the water mains are busted and then everyone’s walking around and they’re just like, oh, wow.

Weird. Like, why is that happening? And it’s like, guys, there was a 7.5, you know, earthquake that just happened. Like, and people are acting like it didn’t happen. Um, so yeah, I, I, I think it’s strange. I mean. It’s 2025 now. Um, and then, I don’t know, like the, the majority of things in our lives day to day, you could still argue, are like not quite touched by any of that stuff.

And that just means that literally anywhere you go, like you could do something that is better. And so this is by far the best time in the history of startups to be starting one.

Andrew Warner: That really is true actually. You’re really seeing more and more people getting into it. I was starting to get Gary A. Little like down on startups because people, the, the energy was not on it.

And now I feel like the energy is so on it and I still want people to do this. Right. And to not end up with these, with these products that people don’t want to use. The Y Combinator phrase. Yeah. Alright. Thanks so much for doing this. I, I love that you’re more and more public. I wish that on Twitter, I, I love that you care about San Francisco.

I wish on Twitter you would talk more about this type of stuff.

Garry Tan: Absolutely, I will. Yeah. I appreciate the feedback.

Andrew Warner: I like your thinking. I love, by the way, I love as someone who lived in San Francisco for a decade and, and just felt like I moved out because nobody loved about, loved it. I feel like it needs the love that you have and a few other people have, but I like your insight a lot.

Um, bring it in to other places. Thank you. Thank

Garry Tan: you so much. I appreciate that. Hell yeah. I’m looking. Thanks Andrew. Thanks for having

Andrew Warner: Thanks. Bye everyone.

 

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