https://www.ycombinator.com/blog/announcing-yc-x25/

Y Combinator
About
What Happens at YC?ApplyYC Interview GuideFAQPeopleYC Blog
Companies
Startup DirectoryFounder DirectoryLaunch YC
Startup Jobs
All Jobs* Engineering* Operations* Marketing* SalesStartup Job Guide
YC Startup Jobs Blog
Find a Co-Founder
Library
SAFE
Resources
Startup SchoolNewsletterFor InvestorsHacker NewsBookface
Open main menu
Apply for X2025 batch.Apply

 1. All Posts
 2. Admissions

Announcing YC X25, the spring 2025 batch

by Dalton Caldwell1/20/2025

[BlogTwitte]

Y Combinator is now running four batches per year: Winter, Spring,
Summer and Fall. We completed the first ever fall batch last year,
F24, and are proud to announce the first ever spring batch, which we
are abbreviating as X25.

                            Apply To X25

One of the first questions people ask when we say we are doing a
spring batch is what letter we will use to refer to it since "S" is
already taken for the summer batch. We considered something like "Sp"
or "P" but one founder made the suggestion of using "X" since it's a
common variable name in programming and thus makes sense since the
name "Y Combinator" itself is a programming term.

YC is doing four batches per year because we realize that with more
frequent batches it's more likely the timing works for founders
applying to YC. In addition, the rate of change currently happening
as a result of AI is causing more people to create startups and we
want to move fast to fund them.

Applications for the Spring batch are now open, and the deadline will
be on February 11 at 8pm PT. The batch itself will take place in the
April to June timeframe, culminating with an in-person demo day.

Apply now to be part of the first-ever Spring batch and part of
history.

Categories

YC NewsStartupsAdmissions

Other Posts

 

How to maintain engineering velocity as you scale

October 25, 2022 by Marcelo Cortes

Read More
 

Y Combinator Top Companies - February 2022

February 28, 2022 by Y Combinator

Read More
 

Meet 8 YC startups that are hiring right now

April 9, 2020 by Ryan Choi

Read More
Sign up for weekly updates from Y Combinator
Subscribe

Author

  * [Dalton]

    Dalton Caldwell

    Dalton is Managing Director, Architect and Group Partner at YC.
    He was the cofounder and CEO of imeem (acquired by MySpace in
    2009), and the cofounder and CEO of App.net.

Footer

Y CombinatorY Combinator

Programs

  * YC Program
  * Startup School
  * Work at a Startup
  * Co-Founder Matching

Company

  * YC Blog
  * Contact
  * Press
  * People
  * Careers
  * Privacy Policy
  * Notice at Collection
  * Security
  * Terms of Use

Resources

  * Startup Directory
  * Startup Library
  * Investors
  * SAFE
  * Hacker News
  * Launch YC
  * YC Deals

Make something people want.

Apply
TwitterFacebookInstagramLinkedInYoutube

(c) 2025 Y Combinator