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 agentic tasks.

To use Nemotron 3 Ultra, set model to nvidia/nemotron-3-ultra-550b-a55b in the AI SDK .

import { streamText } from 'ai' ;

const result = streamText ( {

model : 'nvidia/nemotron-3-ultra-550b-a55b' ,

prompt : 'Plan and run a multi-step research task and synthesize a report.' ,

} ) ;

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting , Zero Data Retention support , dynamic provider sorting by latency and cost , and more.…