YC Spring 2026 (P26) founder

Zac Policzer

Founder of Zibra Labs, Distributed runtime for AI workloads at scale

Company

Zac Policzer is listed as a founder of Zibra Labs. We build distributed compute clusters with the cheapest CPUs and GPUs across Hyperscalers and Neoclouds for AI. Our mission is to bring frontier-grade infrastructure to everyone. We're starting by building large scale high performance computing (HPC) clusters for quantitative trading firms to run parallel simulation workloads such as backtesting. Our technology generalizes to critical AI workloads such as post-training with reinforcement learning, fine-tuning, long-horizon agents with high tool use, and batch inference.

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