Nemotron 3 Ultra
A 550B parameter (55B active) open reasoning model from NVIDIA, built for long-running agent workflows. It uses a hybrid Mamba-Transformer MoE architecture and supports a 1M token context window.
import { streamText } from 'ai'
const result = streamText({ model: 'nvidia/nemotron-3-ultra-550b-a55b', prompt: 'Why is the sky blue?'})Playground
Try out Nemotron 3 Ultra by NVIDIA. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.
Providers
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.
P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.
Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.
More models by NVIDIA
| Model |
|---|
| 256K | 0.2s | 67tps | $0.15/M | $0.65/M | Read:— Write:$0.06/M | — | — |   | 03/18/2026 | ||||
| 131K | 0.2s | 111tps | $0.06/M | $0.23/M | — | — |  | 08/18/2025 | |||||
| 262K | 0.6s | 99tps | $0.05/M | $0.24/M | — | — | | 12/01/2024 | |||||
| 131K | 0.2s | $0.20/M | $0.60/M | — | — | +1 | | 12/01/2024 |
