Y Combinator's Culture Shifts to Be More 'Metrics-Driven'

- The shift is personified by the leadership change from Paul Graham's era to Garry Tan, who took over as President and CEO in 2022. Tan, a YC alum, is seen as bringing the accelerator back to its startup founder roots. - While YC's mantra has consistently been "Make Something People Want," the focus on demonstrating this through quantifiable growth has intensified. Historically, founders were expected to show at least 7% weekly growth in a key metric, such as revenue or user engagement. - Under current President Garry Tan, there's a heavy emphasis on AI-native startups, with roughly 40% of the Winter 2024 batch being AI-first companies. This aligns with YC's view that AI allows small teams to build massive companies, targeting a high revenue-per-employee metric. - Batch sizes have fluctuated significantly, peaking in the remote-first COVID years with over 400 companies at one point, before settling around 500-600 startups annually. To provide more focused attention, YC moved from two to four batches per year in 2024, effectively halving the size of each cohort to about 125 companies. - The composition of YC batches has evolved from being heavily consumer-focused in the early years to predominantly B2B. In recent batches, B2B startups have accounted for over 75% of the companies. - Geographically, after a period of increased international focus during the remote-first years, YC has recently refocused on US-based companies, correlating a Silicon Valley presence with a higher likelihood of becoming a unicorn. - The founder profile has also shifted, with recent batches trending younger and more technical, a direct result of the AI revolution where deep experience is less of a prerequisite. The average founder age dropped to around 25 in 2024. - The standard deal for YC companies has been updated to $500,000, which consists of $125,000 for 7% equity and an additional $375,000 on an uncapped SAFE (Simple Agreement for Future Equity).