NanoGPTNvidia Nemotron 3 Ultra 550B model ID, context window & pricing
nemotron
Quick facts
Model ID nvidia/nemotron-3-ultra-550b-a55b
Source NanoGPT
Context Window 1000000
Pricing $0.50 input / $2.50 output per 1M tokens
Capabilities tool calling, reasoning, temperature control, open weights
Model overview
Nvidia Nemotron 3 Ultra 550B is an AI model from NanoGPT with 1000000 token context window and text input support.
Published pricing is $0.50 input and $2.50 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID nvidia/nemotron-3-ultra-550b-a55b
Provider NanoGPT
Family nemotron
Status -
Knowledge Cutoff -
Release Date 2026-06-04
Input Modalities text
Output Modalities text
Context Window 1000000
Input Limit 1000000
Output Limit 65536
Tool Calling Yes
Reasoning Yes
Structured Output No
Temperature Control Yes
Open Weights Yes
Input Cost / 1M tokens $0.50
Output Cost / 1M tokens $2.50
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.25
Cache Write Cost / 1M tokens -