Hitchhikethe internet
Directory/LLM models/Llama 3.1 Nemotron 8B UltraLong 4M Instruct
LLM models · Model

Llama 3.1 Nemotron 8B UltraLong 4M Instruct

Researched

Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct is an Nvidia-developed instruction-tuned chat model from the Llama 3.1 family with 8B parameters and a 4M token context window, hosted on Hugging Face with function/tool calling support and a December 2023 knowledge cutoff.

Online Checked XLinkedInFollow updates
Official model pageView model card
Official site snapshots

See the official site at a glance

Read-only public captures of Llama 3.1 Nemotron 8B UltraLong 4M Instruct’s homepage and verified pricing page. Screenshots are dated, never live embeds, and open full-screen.

Visit live site
Homepage · captured Jul 23, 2026
Pricing page · captured Jul 23, 2026
At a glance

In one minute

Start here for the decision-making essentials: what Llama 3.1 Nemotron 8B UltraLong 4M Instruct does, who it is for, how it is accessed, and the first-party sources behind this profile.

PricingCurrent signal

See official pricing

Platforms
Hugging Face
API accessNot public
FoundedNot disclosed by source
AvailabilityWeb / remote
LicenseProprietary

Best suited to

Source-backed fit
Ultra-long-context workloads up to 4M tokens Developers using Llama 3.1 family instruct models on Hugging Face Applications requiring native function/tool calling Instruction-tuned chat deployments from Nvidia's model lineup
Model registry

Specifications and best fit

Source backed

Published specifications and use cases for Llama 3.1 Nemotron 8B UltraLong 4M Instruct. Repository dates are kept separate from the model's original release date.

Developer
Not stated
Family
Llama
Original release
Not verified
Repository created
Not recorded
Parameters
8B
Context window
4M tokens (UltraLong)
Architecture
Not stated
License
Not stated
Weights
Not stated
Modalities
Not stated
Languages
Not stated
Repository
Not recorded
Decision support

Common questions and adoption checks

6 sourced answers

Short answers to the questions buyers and builders commonly ask about Llama 3.1 Nemotron 8B UltraLong 4M Instruct. Each answer cites the shared ledger below, where every source is listed once.

01What context window does Llama 3.1 Nemotron 8B UltraLong 4M Instruct publish?

4M tokens (UltraLong)

Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
02What parameter count does Llama 3.1 Nemotron 8B UltraLong 4M Instruct publish?

8B

Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
03Does Llama 3.1 Nemotron 8B UltraLong 4M Instruct document tool use?

Supports function/tool calling

You have access to the following functions. To call a function, please respond with JSON for a function call.
Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
04What does Llama 3.1 Nemotron 8B UltraLong 4M Instruct help with?

Instruction-tuned conversational AI · Long-context document and corpus analysis · Tool-using AI agents with JSON function calls · Research and prototyping on Hugging Face-hosted Llama models

nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct · Hugging Face
Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
05Who is Llama 3.1 Nemotron 8B UltraLong 4M Instruct intended for?

Ultra-long-context workloads up to 4M tokens · Developers using Llama 3.1 family instruct models on Hugging Face · Applications requiring native function/tool calling · Instruction-tuned chat deployments from Nvidia's model lineup

Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
06What pricing information is available for Llama 3.1 Nemotron 8B UltraLong 4M Instruct?

See official pricing

Ledger citation[1] huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Decision guide

Capabilities and operating fit

LLM models

This profile connects the jobs Llama 3.1 Nemotron 8B UltraLong 4M Instruct is described as handling with its delivery model, access options and the subjects used to match it to related products in this directory.

Common use cases

  • Instruction-tuned conversational AI
  • Long-context document and corpus analysis
  • Tool-using AI agents with JSON function calls
  • Research and prototyping on Hugging Face-hosted Llama models

Access signals

Pricing model
See official pricing
API
Not publicly listed
Source links
16 recorded
Source-backed

Verified facts

Updated July 23, 2026

Each fact points to a recorded source, making it easy to distinguish verified product information from claims that need checking.

Official website

HTTP 200 verified twice

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
First-party description

nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct · Hugging Face

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Source-supported facts

Model name: Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct · Origin: Nvidia · Platform: Hugging Face

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Model

Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Origin

nvidia

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Platform

Hugging Face

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Model family

Llama

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Model version

3.1

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
View 9 more verified facts
Parameter count

8B

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Context window

4M tokens (UltraLong)

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Knowledge cutoff

December 2023

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Tool use

Supports function/tool calling

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Distribution

Hosted on Hugging Face

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Application type

Instruction-tuned chat model

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Source-supported facts

Model: Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct · Model family: Llama 3.1 Nemotron · Company: NVIDIA

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Model family

Llama 3.1 Nemotron

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Company

NVIDIA

[1]huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Practical capabilities

What it helps with

5 documented areas

A concise view of the jobs, capabilities and integrations described in the recorded product sources.

Use case

Instruction-tuned conversational AI

Use case

Long-context document and corpus analysis

Use case

Tool-using AI agents with JSON function calls

Use case

Research and prototyping on Hugging Face-hosted Llama models

Focus area

LLM models

Availability

Where it runs and where to get it

Source checked

Documented product formats, platforms and official distribution destinations. Availability can vary by region and plan.

Cost / license

See official pricing

Application types

Instruction-tuned chat model

Origin

nvidia

Platforms

Hugging Face

App stores and other links

GitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHubGitHub
Implementation details

Adoption notes

DeploymentNot disclosed by source
LicenseNot disclosed by source
Model supportLlama-3.1-Nemotron-8B-UltraLong-4M-Instruct
Data controlNot disclosed by source
Learning curveIntermediate
Primary use casesInstruction-tuned conversational AI, Long-context document and corpus analysis, Tool-using AI agents with JSON function calls, Research and prototyping on Hugging Face-hosted Llama models

What to verify before adopting

    Evolution and major updates

    Llama 3.1 Nemotron 8B UltraLong 4M Instruct timeline

    A concise history of software releases and material product changes. Events appear only when a dated source supports what changed.

    1 dated update
    Latest first · exact dates

    Showing the newest updates and meaningful milestones. Open an entry for its summary and source.

    1. Release note

      Hugging Face repository published

      Open details

      The public model repository was created on Hugging Face. This repository date may differ from the model's original release date.

      View source [1]
    Citation ledger

    Recorded sources

    16 unique pages

    Facts, answers, structured details, milestones and primary resource links cite this shared ledger. Each external page appears once; release tags from the same GitHub project are grouped under one release history.

    1. 1huggingface.co/nvidia/Llama-3.1-Nemotron-8B-UltraLong-4M-Instruct 17 facts · 6 answers · 1 milestone · Official site
    2. 2huggingface.co/blog Official site
    3. 3huggingface.co/docs Documentation
    4. 4huggingface.co/docs/inference-providers/index Documentation
    5. 5huggingface.co/docs/safetensors/index Documentation
    6. 6huggingface.co/inference/models Official site
    7. 7huggingface.co/models Official site
    8. 8huggingface.co/models Official site
    9. 9huggingface.co/models Official site
    10. 10huggingface.co/models Official site
    11. 11huggingface.co/models Official site
    12. 12huggingface.co/models Official site
    13. 13huggingface.co/models Official site
    14. 14huggingface.co/pricing Pricing
    15. 15huggingface.co/privacy Security
    16. 16huggingface.co/support Official site
    Research status15 substantive facts · 16 source pages · quality score 79/100