Y Combinator Spotlights AI Infrastructure Startups

Y Combinator's Fall 2025 cohort, analyzed by CB Insights, features over 155 startups with 92% embedding AI at product cores. The batch highlights growth in agent-focused infrastructure—memory, integration hubs, observability, simulation and specialized payments—plus advances in robotics and finance automation. These trends signal a move from experimental AI to enterprise-grade stacks prioritizing data provenance and specialized workflows.