by Nvidia

NVIDIA: Nemotron 3 Ultra.

text open weights datacenter 550B params 1M ctx
Cheapest input
$0.5/M
on DeepInfra
Cheapest output
$2.2/M
on DeepInfra
Smallest GPU
2× AMD MI300X
$1.00/hr
Description

About NVIDIA: Nemotron 3 Ultra.

An open-weights text model in NVIDIA's Nemotron 3 family, with 550B parameters and 55B active per token. It shares the family's LatentMoE design of Mamba-2, mixture-of-experts and attention layers, supports up to 1M tokens of context, and lets you turn reasoning on or off. NVIDIA recommends it for complex multi-step agents, long-context analysis, tool use, multilingual work and retrieval, and lists 8x B200-class GPUs, 8x H200 or 16x H100 as the minimum for the BF16 weights. The licence is OpenMDW-1.1.

Context window

How much it can remember.

1M tokens ≈ 750,000 English words
4K 32K 128K 1M
Capabilities

What it can do.

· Vision input
· Audio input
· Video input
· Function calling
· Tool use
· JSON mode
✓ Streaming
· Fine-tuning