Ben Koska is the 19-year-old founder and CEO of SF Tensor, a Y Combinator-backed startup building AI infrastructure. He created Emma Lang, a new programming language that compiles across CUDA, ROCm and emerging accelerators to make AI training faster, cheaper and hardware-agnostic. Before founding SF Tensor, Ben co-founded a fintech startup and managed AI research initiatives running training across 4,000+ GPUs.