Nemotron 3 Ultra

NVIDIA · 2026 · LLM · USA

A to Z

A · App: No
B · Built By: NVIDIA
C · CEO & Politics: Jensen Huang — Pragmatic / bipartisan donor
D · Date: 2026
E · Expertise: Intermediate+
F · Free Tier: Yes
G · Generates: Text only
H · Deployment: Open weights (Hugging Face, BF16 + NVFP4) with training data, recipes and GenRM reward model
I · Inputs: Text
J · Jurisdiction: USA
K · Key Staffers: Jensen Huang (CEO & Founder), Bryan Catanzaro (VP Applied Deep Learning)
L · Languages: English-primary
M · Model Type: LLM
N · Safety Issues: None reported
O · Open Source: Yes — open weights
P · Pricing: Free (open weights, OpenMDW-1.1 license)
Q · AIDb Rating: 8/10 · AIDb v2.0 (curated): Capability 8/10 · Currency 10/10 · Access 8/10 · Significance 7/10 → 8.25
R · What Makes It Special: 550B-parameter sparse MoE with 55B active, built for long-running agentic harnesses (OpenCode, Hermes, OpenClaw): hybrid Mamba/Transformer architecture and an unusually complete open release — weights, training data, recipes, reward model, quantized checkpoint.
S · Stock / Status: $225 (NVDA, Sep 25, 2026)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: No
W · Weights: Downloadable
X · X Handle: @nvidia
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Open-weights LLM from NVIDIA, released 2026.

Data completeness 88% · Last verified 2026-08-09 · Primary source ↗

“Nemotron 3 Ultra.” AIDb — The AI Database. Verified 2026-08-09. https://theaidatabase.com/m/nvidia-nemotron-3-ultra.html