
Y Combinator runs a three-month accelerator program in Silicon Valley, investing $125 000 for 7% equity plus $375 000 on an uncapped SAFE (MFN clause). Participants get weekly dinners and office hours with top founders, culminating in Demo Day. Four batches run each year; applications for Fall 2025 are open now, with on-time deadline August 4, 2025 at 8 PM PT.
Early-stage startup teams with a working prototype or MVP; technical founders encouraged; open to any industry or geography.