Nemotron 3 Ultra Master Prompts (June 2026)

Fri, 12 Jun 2026 00:00:00 +0000

Nemotron 3 Ultra Prompt Guide

NVIDIA Nemotron 3 Ultra (released June 2026) is the first open-weight 550 billion parameter hybrid Mamba–Mixture-of-Experts model — a groundbreaking architecture combining Mamba’s linear-time sequence processing with Transformer-based expert modules.

Architecture

Input → [Mamba Backbone] → [MoE Router] → [Expert 1..N] → Output
         ↑ Linear time        ↑ 55B active        ↑ Sparse activation
         1M context OK        out of 550B total     ~10% active params

Key Specifications

Metric	Value
Total Parameters	550B
Active Parameters	55B (~10%)
Context Window	1,000,000 tokens
MMLU Score	89.1
Architecture	Hybrid Mamba–Transformer MoE
License	Open weights (NVFP4 variant on Hugging Face)

Prompting Strategy

Nemotron 3 Ultra’s unique Mamba-MoE architecture requires different prompting than pure Transformer models:

Mamba-Moe on AI Prompt Toolkit

Nemotron 3 Ultra Master Prompts (June 2026)

Nemotron 3 Ultra Prompt Guide

Architecture

Key Specifications

Prompting Strategy