Nemotron 3 Ultra now available on AI Gateway (opens in new tab)

**Published:** June 4, 2026 | **Authors:** Walter Korman, Rohan Taneja, Jerilyn Zheng --- Nemotron 3 Ultra from Nvidia is now available on Vercel AI Gateway. Nemotron 3 Ultra is an open Mixture-of-Experts reasoning model built for orchestrating long-running agent workflows, with a 1M token context window. The model targets multi-turn agent workflows: planning, tool use, sub-agent delegation, and error recovery. Throughput reaches up to 350 tokens per second, with up to 30% lower cost on ag...