The S26 Email: What Getting In (and Not) Actually Means
Show notes
What the episode covers
Two founders applied to YC S26. One got in. One didn't. In this episode of Year One, Miles and Grant sit with both of them inside the moment the decision email arrived — and what happened next reveals more about each founder than the application itself did. The accepted founder had reverse-engineered proof-of-velocity signals specifically for YC's evaluation criteria. The rejected founder had spent her final six weeks rewriting her bio. A YC partner breaks down the two signals that move an application from interesting to interview — traction curve shape and founder-problem fit — and both founders' stories map almost exactly onto what the partner describes. Grant pushes hard on the rejected founder's traction number, pointing out she had evidence she simply didn't lean into. With Demo Day on September 10th, one founder has $500k and 14 weeks; the other has roughly 90 days before the next deadline and, when the hosts last spoke to her, still no plan. If you're preparing a YC application or trying to understand why a strong company didn't get in, this one is worth your full attention.
Timeline
In this episode
7 moments worth skipping to. The timecodes match the player above.
- 0:00Introduction
- 1:48The Email Drops
- 4:04W26 Set a Bar Nobody Saw Coming
- 6:43Two Founders, One Decision, No Polish
- 9:55Pattern Match: What a YC Partner Actually Saw
- 12:39What Happens Next for Both of Them
- 14:58Outro
Quick answers
Straight from the episode
The questions this one settles, without the listen.
- What was the acceptance rate for YC S26?
- The S26 batch had over 30,000 applications with an acceptance rate of roughly 1.5 to 2 percent, making it one of the most competitive batches in YC history.
- How strong was the YC W26 batch and why does it matter for S26 applicants?
- W26 set a record with 14 companies hitting $1M ARR before Demo Day, and Rebel Fund's algorithm found 35% of W26 startups scored in the top 20% of all YC companies ever evaluated. One company entered Demo Day at $27M ARR. This raised the implicit floor for S26, meaning $100K ARR was no longer enough to stand out.
- What two things does a YC partner look for to move an application from interesting to interview?
- According to the YC partner in the episode, the two signals are the shape of the traction curve and founder-problem fit — specifically not just domain knowledge but the reason you cannot walk away from the problem.
- What mistake did the rejected founder make in her YC application?
- She spent the six weeks before the deadline rewriting her founder bio four times rather than strengthening her traction story. She had evidence of real traction but did not lean into it, and Grant points out the bio focus signaled a misunderstanding of what YC actually evaluates.
- How did the accepted founder approach his YC application differently?
- He reverse-engineered proof-of-velocity features specifically for the application and leaned into his co-founder relationship, which he believes read clearly on paper because they demonstrated trust under pressure.
- What does the rejected founder need to do before the next YC application deadline?
- She has roughly 90 days before the next deadline, and Grant frames her single variable as improving one number, not rewriting her story. When the hosts last spoke to her, she still did not have a plan.
Transcript
The full conversation
Every word of the episode, 2,733 of them, in the order they were said.
Read the transcriptHide the transcript
MilesWelcome to Year One. I'm Miles.
GrantAnd I'm Grant. And today we're doing something a little different.
MilesYeah, two founders, one decision, completely opposite outcomes.
GrantSame email, different words.
MilesRight, so the cold open you just heard or are about to hear, that's both of them. One got into YC S26, one didn't, and we kept the raw reactions.
GrantAnd here's why that matters. The W26 batch, according to Garry Tan, Had fourteen companies hit a million in ARR before Demo Day, highest ever. Three times the number from the batch before it.
MilesRebel Fund's algorithm scored 35% of W26 startups in the top 20% of all YC companies ever evaluated. No previous batch came close.
GrantSo the bar going into S26 is not the same bar it was two years ago. That's the context.
MilesAnd over 30,000 applications are competing for what is roughly roughly a 1.5 to 2% acceptance rate.
GrantWhich means the question isn't just whether you got in, it's what the decision reveals about you.
MilesSo here's where it gets interesting. The accepted founder reverse engineered what YC actually looks for, deliberately. The rejected founder spent her final six weeks rewriting her bio.
GrantYeah, we'll dig into what that gap actually tells you about self-awareness under pressure.
MilesWe've also got a YC partner breaking down the two signals that that move an application from interesting to interview, Grant's going to push on exactly how both founders measured up.
GrantI've seen this play out. The math on why one application works and another doesn't is almost never what founders think.
MilesAnd we end on a clock. One founder has 14 weeks and $500,000. The other has about 90 days before the next deadline and no plan.
GrantAll right, let's get into it.
MilesHere's the cold open. I just kept refreshing. Like, literally, I could not stop. My co-founder was asleep. It was two in the morning, and I thought, if it says yes, I'm calling him right now. I don't care.
GrantAnd?
MilesIt said yes, and I did call him. He picked up immediately. Neither of us said anything for probably 15 seconds.
GrantThat's the one.
MilesYeah. That's the one.
GrantThe other founder we spoke to didn't get that call.
MilesNo.
GrantShe described checking the email in a Starbucks because she didn't want to be home alone when it came, and it said no.
MilesAnd what did she do?
GrantShe said she sat there for an hour, didn't order anything, just sat.
MilesYeah.
GrantAnd then she walked back to her apartment and started rewriting her application for the next batch.
MilesThe same day?
GrantSame day.
MilesOkay, I want to hold both of those for a second because that contrast is kind of the whole show, but let's just put a number on what we're talking about. Over 30,000 applications went in for S26.
GrantRight. And according to YC Combinator's own application page, they fund roughly 1.5 to 2% of applicants per batch. So out of those 30,000 founders, we're talking maybe 200 companies that got a yes.
MilesS26 runs July through September in San Francisco. Demo Day is September 10th. That's the finish line these founders are now sprinting towards.
GrantAnd the one who didn't get in, she's got a different clock running.
MilesThe next batch opens. She reapplies. But the world keeps moving in the meantime. That's the part nobody really talks about, right?
GrantIt's not just the yes or the no.
MilesYeah.
GrantIt's what the next 90 days look like for each of them.
MilesSo here's where it gets interesting. W26, the batch that just finished, was by a lot. A lot of measures, the strongest in YC's history. According to Garry Tan, 14 out of nearly 200 startups hit a million dollars in annual recurring revenue before Demo Day, the most ever.
GrantThat's the bar S26 founders were measured against when they applied.
MilesAnd that bar changes what getting in actually means now. So here's the question I keep coming back to. What did those two founders actually have or not have that... That put one of them in a Starbucks alone at noon and the other one on the phone at two in the morning. So here's where the W26 numbers stop being abstract. According to Garry Tan's own post, 14 companies hit $1 million ARR before Demo Day. Historically, that's been 3, maybe 5 per batch, three times as many as W25.
GrantThat's the part I keep coming back to. Not that one outlier did it, but that 14 did.
MilesRight. And then Rebel Funds, which has been running a machine learning algorithm against every YC batch since 2013. published
GrantWow.
Milessomething before a single company even presented 35% of W26 startups scored in the top 20% of all YC companies ever evaluated no previous batch was close That's that's
Granta genuinely weird number. Like, statistically, this shouldn't be possible if the distribution held.
Milesthe exact thing their algorithm showed the entire curve shifted right not just the top end the 25th percentile improved the 50th improved Fewer predicted zombies across the board.
GrantOkay, but I want to push on this: does a record batch raise or lower the signal value of getting in? If the bar is higher, does the acceptance itself mean less?
MilesI think it means more not less, because YC still only took roughly one to two percent of applicants. Thirty thousand people applied for S26, same pool size. What changed is who got through that filter.
GrantSo the signal is stronger because the comparison set got harder.
Speaker 3It's got harder.
MilesExactly, and you can feel that in the traction numbers. Lobstercaps' Demo Day recap noted one company walked in at 27M ARR; another had a 175M in LOIs. Those aren't Demo Day numbers, those are Series B numbers.
GrantI mean a hundred and seventy five million in LOIs at seed, the math doesn't quite work at that stage, but the signal absolutely does.
MilesYeah, and the composition matters, too. The batch was 88% AI-first, 64% B2B. Consumer barely registered at around 5%. These weren't lifestyle ops or consumer experiments, the companies were going after hard technical problems with paying customers already in the door.
GrantSo what does that actually mean for an S26 founder sitting in July, like concretely?
MilesMeasured, it means 100K ARR used to put you in the conversation. According to the Tremendous piece on W26 traction, Garry Tan said hitting That hitting a hundred K ARR used to mean you were one of the top companies. Not any more; the floor moved.
GrantRight. And the founders applying to S26 know that. They watch W26 Demo Day. They saw what shipped.
MilesWhich is why what our two founders actually did in the six weeks before the S26 deadline matters so much-one of them got through, one of them didn't, and that gap probably doesn't look like what either of them expected.
GrantLet's hear it from them.
MilesSo here's the part I actually wanted to get to. The founder who got in, I asked him point blank, what do you think pushed you over the line?
GrantAnd?
MilesHe had an answer ready. Very clean, very confident. But the more I pressed, the more I realized he was pattern matching backwards, assembling a story from the outcome.
GrantYeah, I've seen that a hundred times. Someone gets the good news and suddenly everything they did looks like a deliberate move.
MilesExactly. So I pushed him on the co-founder pairing specifically. Why these two people? Why not go alone or wait for a different partner?
GrantWhat'd he say?
MilesHe talked about complementary skills, the usual. Then he paused, and he said something more honest. He said, "Um, I think we just trusted each other under pressure, and that probably read on paper.
GrantTrusting each other under pressure-that's actually a real answer.
MilesRight-that's the one I believed.
GrantMy conversation was messier. The founder who got rejected, she had a theory about where the application broke down. Very organized: team section, market section, traction section.
MilesShe'd already done the post mortem.
GrantYeah. But she kept landing on the traction number like it was the whole story. We only have forty users, so.
MilesAnd you didn't buy that?
GrantI didn't push back on the number-I pushed back on what she was avoiding, because forty users can be enough if the story around them is clear. Letters of intent, a wait list that converted unusually well, something-she had some of that, she just didn't put it in.
MilesSo the application undersold the actual traction.
GrantOr she didn't believe the traction was real enough to lean into, which is a different problem.
MilesMmm, founders do that; they discount their own evidence because they know all the caveats.
GrantAnd YC doesn't fill in the blanks for you. If you don't make the case, they move on.
MilesSo we asked both of them the same question: What did you do in the six weeks before the deadline that you wouldn't have done otherwise?
GrantThat one landed differently for each of them.
MilesThe guy who got in said he shipped two features specifically so he'd have something concrete to point to in the application, not because users asked for them, because he needed a proof of velocity story.
GrantHe reverse engineered the narrative.
MilesConsciously, he admitted it without hesitation.
GrantThe founder who got rejected? She said she rewrote the founder bio section four times. Four times!
MilesNot the product section, not the traction section.
GrantThe bio. And you know what? I didn't say anything. I just let that sit.
MilesThat silence tells you everything about where her head was.
GrantShe knew it too. She said it and then she stopped talking.
MilesSo one founder built towards the application, the other wrote towards it.
GrantTwo very different clocks running from this point forward.
MilesYeah. One's heading into YC with Demo Day on the calendar, the other's got YC S27 application. (In applications opening this summer and a lot of ground to cover.) A YC partner is going to tell us exactly which gaps you'll need to close and whether either of these founders actually understood what moved the needle. That's next. So what does a YC partner actually look for when the bar is this high? I put that to someone who's been reading applications for several batches now. The first question I asked was simple: what moves an application from interesting to interview? And what do they say?
GrantTwo things. One is momentum you can't fake, not just revenue or users, but the shape of the curve. Are things accelerating or flattening? They can read that in about 30 seconds.
MilesSo here's where it gets interesting because that's exactly the gap. Gap we kept circling back to in that second interview. Right, the rejected founder had real traction, she just didn't show the curve, she showed a snapshot. A number without a story behind it. Exactly. And the second thing the partner said, and this is the part that stuck with me, was founder problem fit. Not just domain knowledge, specifically, why can you not walk away from this? Which is a harder question than it sounds. Way harder. Because you can learn in industry, you can hire domain experts. What you can't manufacture is the thing that keeps you in the building at 2 a.m. when it's not working. Hmm. Did they address the W26 profile? Because according to Extruct AI's breakdown, the average W26 founder had 5.8 years of professional experience, down from about 9 historically. Younger, way more technical. I asked about that directly. The partner's read was the W26 didn't shift what they were looking for, it shifted who was demonstrating it convincingly. Founders coming out of Tesla or SpaceX with hard tech-
GrantIn technical backgrounds, they show up with proof of what they can actually build.
MilesSo if S26 applications are being read against that comp set,
GrantThe bar for what counts as credible just got steeper.
MilesYeah. And the bio rewrites don't help.
GrantNo, the partner was pretty clear about that without me even mentioning our founder. They said something I keep thinking about: The application tells us what you think matters about yourself. If the answer to that is personal branding, we learn something important.
MilesThat's a kind way to put it.
GrantVery kind. I pushed on whether there's a version of the rejected founder's application that gets through, and they didn't close the door. They said, show us the number moving, not the number sitting there.
MilesWhich is fixable?
GrantAccording to YC's application page, the S26 deadline is July 27th, that's about seven weeks from now.
MilesSo she has a clock.
GrantThey both do, honestly; one just has a Demo Day on the calendar already, September 10th, and the other has a window that closes in seven weeks.
MilesTwo very different problems.
GrantSame starting gun, though.
MilesSo the accepted founder wakes up inside YC with 500k from the standard deal, Demo Day circled on September 10th. What does week one actually look like?
GrantWeek one is a trap. You've got the money, you've got the credibility, and there are a hundred things screaming for your attention. But the only thing that actually matters in week one is the same thing that got you in, your growth number.
MilesRight, because according to Y Combinator's structure, that 125k... 125k goes in on a 7% post-money SAFE, the 375k on an uncapped MFN. You have the capital the question is what you point it at.
GrantAnd the answer is almost always don't change anything yet. You got in doing something. Figure out what made it work, then do more then faster.
MilesEvery YC founder I've talked to says the batch compresses time in a way that's hard to describe until you're inside it. 14 weeks feels like maybe four.
Grant14 weeks that end on a stage in front of investors who just watched the W26 class. That's the comparison. That's the pressure.
MilesYeah, and that bar moved.
GrantNow for the rejected founder, and this is the one I keep thinking about.
MilesWhat's the number?
GrantThat's exactly it. According to Y Combinator's fall 2026 application page,
MilesOn-time deadline for the next batch is July 27. Decisions back the August 28. That's the clock.
GrantSo roughly 90 days from now.
MilesNinety days to move
GrantYeah.
Milesone number. Not five. Not a whole new story. One number. Users. Revenue. Shipped units. Pick the one that proves the business is real.
GrantAnd that's hard to hear when the rejection is still fresh because the instinct is to rewrite everything. New positioning, new...
Milesnew bio, Which is exactly what she did the last time. Yeah, the application doesn't need a better story, it needs a different number at the top of it.
GrantSo does she have a plan?
MilesWhen we talked to her after the decision came in, she said she was still figuring that out.
GrantWhich could mean a lot of things.
MilesIt could, or it could mean exactly what it sounds like, that the path forward is visible, but she hasn't stepped onto it yet.
GrantAnd that's where we leave her.
MilesThat's where we leave her. Ninety days, one number. Either she moves it or she doesn't.
GrantThe market doesn't wait for anyone to be ready.
MilesNo, it really doesn't.
GrantAll right, that's our episode. And honestly, the moment that's going to stick with me, 15 seconds of silence on that 2 a.m. phone call. Neither of them said anything. That's the whole story right there.
MilesYeah, and then the flip side. She's sitting alone in a Starbucks and she went home and started rewriting the application the same day, same day.
GrantBoth reactions make sense. That's what I keep coming back to. The decision separates people fast.
MilesThe one takeaway I'd leave anyone with, the application isn't about the words. It's about what your traction is actually saying.
GrantRight.
MilesOne founder understood that. The other didn't. Not yet anyway.
GrantNot yet. And with a small laugh, she's got roughly 90 days before the next deadline. We'll see.
MilesIf you know a YC founder in Year One who tell their story honestly, send them our way, yearone at heymotto.com. And if this episode hit, leave a review. It genuinely matters.
GrantThanks for listening. We'll see you next week.
More episodes
Keep listening
Other episodes of Year One, newest first.
- Greypoint: Building Hardware in an AI BatchSep 15, 2026 · 17 min
- 9 Mothers: The $200M That Warped the BatchSep 9, 2026 · 17 min
- Demo Day+72: How S26 Term Sheets Get PricedSep 1, 2026 · 17 min
- Nadia: The Verdict ArrivesAug 25, 2026 · 15 min
Sources
Where this came from
19 reports behind the episode. Every one of them opens where it was published.
- Garry Tan on X: "YC Demo Day for W26 is in full swing The craziest stat: 3X more companies in this batch reached $1M annualized revenue than W25 Also crazy: the fastest revenue growth rate of YC history at 14% week on week growth *on average* across the whole set of nearly 200 startups https://t.co/C3fRy60ifK" / Xx.com
- YC Application Deadline Dates (2026)zyner.io
- YC W26 Batch Breakdown: Deep Dive on 199 Companies With Founder Data | Extruct AIextruct.ai
- How to Apply to Y Combinator in 2026 (The Complete Guide)capwave.ai
- Apply to YC | Y Combinatorycombinator.com
- YC’s Record Breaking W26 Demo Day Recaplobstercap.substack.com
- Y Combinator W26 & S26 Companies to Watch in 2026 - Jesseagentjesse.ai
- YC W26 Demo Day: Everything You Need to Know About the Strongest Batch in Y Combinator Historythevccorner.com
- $1 Million By Demo Day — What Top YC Startups Look Like in 2026tremendous.blog
- On the freakishly strong YC W26 batch | by Jared Heyman | Mediumjaredheyman.medium.com
- When Do YC S26 Interview Invites Go Out? Timeline, Email ...ycroaster.com
- Ycroasterycroaster.com
- Early Decision for Students | Y Combinatorycombinator.com
- YC Application Review Process & Statuszyner.io
- YC Summer 2026 Applicationscouts.yutori.com
- YC W'26 Demo Day Unveils 16 Breakthrough Startupstechbuzz.ai
- YC W26 Batch: Complete Database of 196 Companies (2026)thevccorner.com
- YC W26 Demo Day: Record-Breaking Startups with AI ...linkedin.com
- YCombinator: How Many Times Can You Apply (The Real Answer)zyner.io
