NVIDIA-Nemotron-3-Ultra-550B-A55B

550B / 55B

Nemotron 3 Ultra is built for, frontier reasoning, orchestration, coding agents, deep research, and complex enterprise workflows. It delivers up to 5x faster inference and up to 30% lower cost for agentic workloads while supporting up to 1M token context.

Context
262K
Input price
$0.5/1M tokens
Output price
$2.2/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming

Details

Model IDnvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B
Provider DeepInfra
Creator NVIDIA
Family—
License—
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightYes
Parameters550B / 55B
Architecture—
Context window262K tokens
Max input—
Max output—
Reasoning tokensYes
Knowledge cutoff—
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.deepinfra.com/v1/openai/v1/chat/completions

Pricing

Input
$0.5
Output
$2.2
Cache write
—
Cache read
$0.1
Batch in
—
Batch out
—

API

GET/v1/models/deepinfra/nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B

NVIDIA-Nemotron-3-Ultra-550B-A55B

nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B

Nemotron 3 Ultra is built for, frontier reasoning, orchestration, coding agents, deep research, and complex enterprise workflows. It delivers up to 5x faster inference and up to 30% lower cost for agentic workloads while supporting up to 1M token context.

Changes · 4 entries
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55Bcreateca7a400Nov 2, 2026, 03:02 AM
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55Bupdate53ef452Jul 9, 2026, 02:32 AM
quantizationfp4
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55Bupdateab879c8Jun 18, 2026, 08:32 AM
pricingoutput$2.5→$2.2cached input$0.15→$0.1
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55Bcreated68a4f1Jun 10, 2026, 02:10 AM