How Y Combinator founders are pitching the AI boom

Y Combinator founders seized the AI boom in 2025, with increasingly younger teams securing millions in seed funding. Founders launched companies ranging from military night vision goggles to US work visa automation and AI-native video meeting platforms . One common thread: founders are getting younger , including teens who left MIT , Stanford , and even high school to attend the program. The median founder age of YC's summer 2025 cohort was 24, down from 30 in 2022. Founders are also harnessing AI to build faster. Some told Business Insider they were expected to arrive at Demo Day with more customers and clearer revenue signals. Y Combinator says its batches are now growing revenue at roughly 10% week-over-week - a stat that's remained consistent across the last six classes. Below are the YC pitch decks we published in 2025 - a window into how early-stage founders are pitching in an era when AI is poised to reshape industries, and expectations for young founders are rising fast. A father of four raised $4.5 million to help fuel the US manufacturing 'renaissance' with AI. Read his pitch deck. Two 19-year-old MIT dropouts joined Y Combinator and raised $2.7 million to arm police with AI. Read the pitch deck. Two teen founders dropped out of school and raised $3 million out of Y Combinator. Read their pitch deck. Brothers, 19 and 20, quit Stanford and graduated from Y Combinator with $4 million. Read their pitch deck. A second-time founder graduated from Y Combinator with a new AI financial services startup. Read her pitch deck. 23-year-old cofounders left Amazon and Microsoft to build an AI startup. Read their Y Combinator pitch deck. See the 8-slide pitch deck AI video calling platform Lyra used to raise a $6 million seed round from Y Combinator and 468 Capital Read the exclusive pitch deck AI voice agent testing startup Cekura used to raise $2.4 million out of Y Combinator This YC-backed startup wants to speed up US visa applications with AI. Read the pitch deck it used to raise $2.7 million.

Preview: ~344 words