YC's Summer 2026 Batch Tilts Toward Hardware and Defence

Y Combinator’s Summer 2026 batch runs July to September in San Francisco with 164 startups announced so far, $500,000 per company on standard terms, and Demo Day set for 10 September. The Requests for Startups span 15 categories covering AI, hardware, defence, agriculture and space — and of the named companies circulating, two are physical: Hlabs building actuators and Prototyping.io turning designs into mechanical parts in days. A third, GitCafe, positions itself as a modern replacement for GitHub. The framing quoted around the batch is that AI has stopped being a feature and become the foundation, which pushes differentiation onto distribution, domain data and physical execution.