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What Surprised Us Most In 2025
Y Combinator· 2025-12-22 15:01
I think perhaps the thing that most surprised me is the extent to which I feel like the AI economy stabilized. We have like the model layer companies and the application layer companies and the infrastructure layer companies. Seems like everyone is going to make a a lot of money and there's kind of like a relative playbook for how to build an AI native company on top of the models.Many episodes ago, we talked about how it was felt easier than ever to pivot and find a startup idea because if you could just s ...
Finding Opportunity in Outdated Rules
Y Combinator· 2025-12-05 17:12
A lot of great startup ideas are sort of in this gray area of like the law is not totally clear. It's a little bit murky whether it's legal or illegal. Even Open AI is like that, right.I mean, they they crawled the entire web without permission. You could argue that that's fair use or you could argue it's like massive copyright theft. I remember talking to the Lyft founders the week before they launched Lyft and they were extremely worried that they would go to jail and they decided to like roll the dice an ...
Chase the Hard Problems
Y Combinator· 2025-11-25 21:35
Product Development & Strategy - Technical difficulty can be a competitive advantage, deterring others and creating opportunities for those with the skills and courage [1] - Spending time with customers to understand their problems is crucial, even if the product is not fully developed [2] - Customer interaction should not be avoided as an excuse for prolonged isolated development [2]
Find a Pain Point Worth Solving
Y Combinator· 2025-11-24 20:08
You can go almost anywhere and find some painoint, some problem that could be solved with software and especially with AI that frankly just isn't being solved. If you find that thing and solve it, you literally can mint a billion dollar or 10 billion or even hundred or hundreds of billions of dollars market cap business and it's just lying in plain sight. You should start with, do I have a specific person who has some sort of pain point.And it's pretty painful. It's not like a, oh, it'd be nice if I could d ...
Cursor Head of Design Reviews Startup Websites
Y Combinator· 2025-11-20 15:00
Product Design & Communication - The report analyzes how product websites effectively communicate a company's purpose [1] - It focuses on design and engineering aspects of website creation, highlighting the importance of clarity and brand representation [1] - The analysis covers websites from early-stage startups, examining design choices that aid user understanding [1] Featured Companies & Websites - The report features websites of companies like Crunched, Velvet, Klavis AI, Code Crafters, Slashy, Freya, Finta, and Vibeflow [1] - These companies volunteered their websites for review, showcasing various approaches to product presentation [1] - The listed URLs provide direct access to the discussed websites for further examination [1] Key Discussion Points - The discussion includes analysis of website structure, clarity, and branding elements [1] - It identifies website elements that either facilitate or hinder user comprehension of the product [1] - The report emphasizes the role of design in how software is made and presented [1]
Founder Stories: Rishi Choudhary
Y Combinator· 2025-11-16 18:36
My name is Rishi Chadri. I'm the founder and CEO of Castle AI. Castle builds voice AI agents for large banks and mortgage lenders to automate phone calls.Things are going pretty well and we actually work with three of the top 25 servicesers in the country. My life has completely changed. Uh post YC, preyc I was just like working a regular 9 toive job.You know, I always thought like corporate America is going to be like this exciting thing that I get to like, you know, build and constantly ship new products. ...
Founder Stories: Saurav Kumar
Y Combinator· 2025-11-10 02:56
Company Overview - Fleet Line aims to boost client revenue by 20% through graph algorithms designed for better truck positioning based on future demand [1] - Fleet Line has secured multiple six-figure contracts [2] - Fleet Line completed a $4 million seed round [2] Founder & YC Impact - The founder, Sarv Kumar, graduated with a CS and statistics degree [1] - YC significantly influenced the founder's risk tolerance and ability to navigate the constantly changing environment of being a founder [3] - YC helps refine ideas by combining the founder's strengths with market needs [4]
Founder Stories: Rishi Choudhary
Y Combinator· 2025-11-09 16:34
Company Overview - Castle AI specializes in developing voice AI agents for large banks and mortgage lenders to automate phone calls [1] - The company has achieved seven-figure (over $1 million) in revenue [1] - Castle AI works with three of the top 25 servicers in the country [1] Market Opportunity & Strategy - Castle AI enables executives of large banks to shape their AI journey and roadmap for the next five years [3] - The company helps banks build new products and work on exciting new things [3]
How To Recruit The Best Engineers And Sales Reps
Y Combinator· 2025-11-07 17:58
Hiring Strategy - Early-stage startups need to focus on selling their company to potential hires, not just interviewing [1] - Great candidates prioritize what the startup can offer them [1] - Effective outreach is crucial for getting replies from top engineering and sales talent [1] - Startups should prioritize selling the company during interviews before assessing candidates [1] - Closing hires quickly is essential, even when competing with Big Tech [1] Key Considerations - First hires are critical for a startup's success [1] - Startups should understand what top talent actually wants [1] - Founders often make common mistakes during the hiring process [1] - Knowing when and how to hire a recruiter is important [1]
Founder Stories: Priya Khandelwal
Y Combinator· 2025-11-07 00:19
Company Overview - Nixo helps AI companies achieve SAS-level margins from custom deployments and services work [1] - Nixo's customer base consists of AI startups [2] Growth & Strategy - YC (Y Combinator) significantly impacted Nixo's trajectory and the founder's journey [1] - The company experienced unexpected levels of growth by engaging with a community of top AI companies [2] Challenges & Mindset - Building a startup involves solving unprecedented problems [2] - The founder emphasizes the importance of continuous effort and learning from peers [2][3]