The AI arena is free today

Open Superagent

Llama 3.1 Nemotron Ultra 253B v1 vs Llama 4 Scout

Llama 3.1 Nemotron Ultra 253B v1 leads the LLM Stats Score 19.1 to 7.8.

NVIDIA · Meta · Updated for 2026

Which is better?

Llama 3.1 Nemotron Ultra 253B v1 leads the overall LLM Stats Score 19.1 to 7.8, ranking #205 overall.

In the 2 individual benchmarks reported for both models, Llama 3.1 Nemotron Ultra 253B v1 wins 2; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Llama 3.1 Nemotron Ultra 253B v1

  • overall performance matters — it scores 19.1 and ranks #205 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • you want the most recent training data — it shipped Apr 2025

Choose Llama 4 Scout

  • you want predictable pricing at $0.08/M input and $0.30/M output

At a glance

The differences that matter most.

Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
Llama 4 Scout
Meta
Core performance indexes
LLM Stats Score
19.1
#205
7.8
#282
Reasoning
18.8
#204
6.6
#285
Coding
12.4
#144
0.4
#239
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
— / M
$0.08 / M
Output price
— / M
$0.30 / M
Context window
—
10,000,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Llama 3.1 Nemotron Ultra 253B v1
Llama 4 Scout
Math
15.6#214
12.8#232
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

6 reported for Llama 3.1 Nemotron Ultra 253B v1 · 12 for Llama 4 Scout

2 shared

Llama 3.1 Nemotron Ultra 253B v1 outperforms in 2 benchmarks (GPQA, LiveCodeBench), while Llama 4 Scout is better at 0 benchmarks.

Llama 3.1 Nemotron Ultra 253B v1 significantly outperforms across most benchmarks.

Mon Sep 14 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

144.0B diff

Llama 3.1 Nemotron Ultra 253B v1 has 144.0B more parameters than Llama 4 Scout, making it 132.1% larger.

NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
253.0Bparameters
Meta
Llama 4 Scout
109.0Bparameters
253.0B
Llama 3.1 Nemotron Ultra 253B v1
109.0B
Llama 4 Scout

Context Window

Maximum input and output token capacity

Only Llama 4 Scout specifies input context (10,000,000 tokens). Only Llama 4 Scout specifies output context (10,000,000 tokens).

NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
Input- tokens
Output- tokens
Meta
Llama 4 Scout
Input10,000,000 tokens
Output10,000,000 tokens
Mon Sep 14 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Llama 4 Scout supports multimodal inputs, whereas Llama 3.1 Nemotron Ultra 253B v1 does not.

Llama 4 Scout can handle both text and other forms of data like images, making it suitable for multimodal applications.

Llama 3.1 Nemotron Ultra 253B v1

Text
Images
Audio
Video

Llama 4 Scout

Text
Images
Audio
Video

License

Usage and distribution terms

Llama 3.1 Nemotron Ultra 253B v1 is licensed under Llama 3.1 Community License, while Llama 4 Scout uses Llama 4 Community License Agreement.

License differences may affect how you can use these models in commercial or open-source projects.

Llama 3.1 Nemotron Ultra 253B v1

Llama 3.1 Community License

Open weights

Llama 4 Scout

Llama 4 Community License Agreement

Open weights

Release Timeline

When each model was launched

Llama 3.1 Nemotron Ultra 253B v1 was released on 2025-04-07, while Llama 4 Scout was released on 2025-04-05.

Llama 3.1 Nemotron Ultra 253B v1 is 0 month newer than Llama 4 Scout.

Llama 3.1 Nemotron Ultra 253B v1

Apr 7, 2025

1.4 years ago

2d newer
Llama 4 Scout

Apr 5, 2025

1.4 years ago

Knowledge Cutoff

When training data ends

Llama 3.1 Nemotron Ultra 253B v1 has a documented knowledge cutoff of 2023-12-01, while Llama 4 Scout's cutoff date is not specified.

We can confirm Llama 3.1 Nemotron Ultra 253B v1's training data extends to 2023-12-01, but cannot make a direct comparison without Llama 4 Scout's cutoff date.

Llama 3.1 Nemotron Ultra 253B v1

Dec 2023

Llama 4 Scout

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Llama 3.1 Nemotron Ultra 253B v1 and Llama 4 Scout side-by-side, then vote on the output you prefer.

Llama 3.1 Nemotron Ultra 253B v1
✓ Preferred
Llama 4 Scout
Open in Playground

FAQ

Common questions about Llama 3.1 Nemotron Ultra 253B v1 vs Llama 4 Scout.

Which is better, Llama 3.1 Nemotron Ultra 253B v1 or Llama 4 Scout?

Llama 3.1 Nemotron Ultra 253B v1 leads the LLM Stats Score 19.1 to 7.8. Llama 3.1 Nemotron Ultra 253B v1 is made by NVIDIA and Llama 4 Scout is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Llama 3.1 Nemotron Ultra 253B v1 compare to Llama 4 Scout in benchmarks?

Llama 3.1 Nemotron Ultra 253B v1 scores MATH-500: 97.0%, IFEval: 89.5%, GPQA: 76.0%, BFCL v2: 74.1%, AIME 2025: 72.5%. Llama 4 Scout scores DocVQA: 94.4%, MGSM: 90.6%, ChartQA: 88.8%, MMLU: 79.6%, MMLU-Pro: 74.3%.

What are the context window sizes for Llama 3.1 Nemotron Ultra 253B v1 and Llama 4 Scout?

Llama 3.1 Nemotron Ultra 253B v1 supports an unknown number of tokens and Llama 4 Scout supports 10.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Llama 3.1 Nemotron Ultra 253B v1 and Llama 4 Scout?

Key differences include LLM Stats Score (19.1 vs 7.8), multimodal support (no vs yes), licensing (Llama 3.1 Community License vs Llama 4 Community License Agreement). See the full comparison above for benchmark-by-benchmark results.

Who makes Llama 3.1 Nemotron Ultra 253B v1 and Llama 4 Scout?

Llama 3.1 Nemotron Ultra 253B v1 is developed by NVIDIA and Llama 4 Scout is developed by Meta.

Related comparisons