Y Combinator

I tried asking myself what I'd learned after 40, and it turned out to be a lot of the most important stuff I know. At least 90% of what I know about startups, because I was 40 when we started YC. Plu…

@paulg·Jul 29, 2026↗

Why Software Factories Fail or: the harness is not enough Update - the talk version of this post is live on youtube: [https://www.youtube.com/watch?v=Ib5GBkD555M](https://www.youtube.com/watch?v=Ib…

@dexhorthy·Jul 24, 2026↗

AI is moving into the physical world. We're excited about a new wave of startups rebuilding the systems that power the real world, from education and healthcare to defense, finance, infrastructure,…

@ycombinator·Jul 23, 2026↗

AI is making marketers lazy. So we made the website do the work instead. Today, we're launching @ployai: the all-in-one marketing platform that turns your website into your hardest working employee.…

@bryantchou·Jun 17, 2026↗

Today we're launching Paxel: a free tool that analyzes your Claude, Codex, and Cursor coding sessions and gives you a profile of how you build with AI. It runs locally inside Docker, and your code n…

@ycombinator·Jun 5, 2026↗

Service as a Software Service as a Software is the biggest market shift since SaaS. Most service businesses will be on the wrong side of it. Y Combinator just told its founders to build companies t…

@_heyrico·May 9, 2026↗

1. should you move to us? and why 2. what swedish ecosystem can do? listen to the full 18 min speech of @paulg at @ycombinator visit to stockholm in apr 2026 https://t.co/lC2oCRROLi

@thehamedmp·Apr 30, 2026↗

AI has stopped being a feature and started being the foundation. We're excited about a new wave of startups rebuilding software, services, and silicon— and pushing AI into the physical world. https…

@ycombinator·Apr 27, 2026↗

We just raised $20M from @usv, @lightspeedvp, @ycombinator, @JeffDean, @patrickc, and others to build the cloud agent OS for work. …and I’m officially back in @ycombinator — spring ‘26 batch. It’s t…

@startupandrew·Apr 7, 2026↗

.@polymath_labs is training world generation models to automate the creation of RL environments. Traditionally, RL environment generation has been bottlenecked by human data. Superintelligence will …

@ycombinator·Feb 26, 2026↗

Wideframe just launched on @ycombinator! Do hours of video work in minutes with @wideframeai. Check out our launch: https://t.co/rPU7Pqu7vE https://t.co/r2yFYFgIZz

@danielpearson·Feb 20, 2026↗

OpenClaw is a new viral and scarily effective virtual assistant. But it's so hard to set up that even most engineers give up. @usebits_inc will set up your secure OpenClaw instance on the cloud, bat…

@ycombinator·Feb 7, 2026↗

Openclaw's @steipete at @ycombinator; takeaways All apps will become APIs or disappear Apps that will remain will be games or sensor-heavy Your agent, not you, will be the primary consumer of soft…

@kyriakosel·Feb 7, 2026↗

Show HN: NanoClaw – “Clawdbot” in 500 lines of TS with Apple container isolation https://t.co/pXUTNTYx3Q (https://t.co/FiwX2ybMdf)

@betterhn20·Feb 2, 2026↗

Coding agents are no longer a distant idea—they're already starting to reshape how we work. YC's Tom Blomfield (@t_blom) and David Lieb (@dflieb) discuss how AI coding tools are transforming softwar…

@ycombinator·May 9, 2025↗

If distribution is the new moat, where is the Y-Combinator for creating distribution, not software? I don’t think it exists. There isn’t much product risk anymore in most startups. Only distribu…

@gregisenberg·Sep 7, 2024↗

sam altman: “honestly, i feel so bad about the advice i gave while running YC i’ve been thinking about deleting my entire blog” https://t.co/Ag94dLXUoL

@morqon·Jun 11, 2023↗

Schools should look more like YCombinator. They *get* Project-Based Learning. In this thread, I'll talk about 10 things @ycombinator gets right about the future of childhood education. 👇

@anafabrega11·Jun 28, 2020↗

8. The future of education does not look like you think it does. It looks like Y-Combinator. Here’s why: • Respected credential • Teams of peers and mentors • Participants learn by doing • Attract…

@david_perell·Feb 16, 2020↗

I’ve learned a lot about giving advice over the past 5 years at YC (still more to learn). When I started I had a very formulaic / tactical view of how startups succeed. Over time and after seeing o…

@mwseibel·Sep 18, 2019↗

What notable funds are doing pre-seed at scale? @HustleFundVC, @PrecursorVC, @svangel, @ycombinator - Who am I missing? With most Seed funds moving to $1-3M+ is there a gap at the $100-500k level?

@abarrallen·Aug 10, 2019↗

I’ve gotten asked a lot about YC interviews in the last week. Here are some tips:

@justinkan·Oct 29, 2018↗