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Atria Dawn Preview vs Llama 3.1 Nemotron Ultra 253B v1

Atria Dawn Preview leads the LLM Stats Score 52.3 to 19.1.

Shanghai AI Laboratory · NVIDIA · Updated for 2026

Which is better?

Atria Dawn Preview leads the overall LLM Stats Score 52.3 to 19.1, ranking #10 overall.

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

Choose Atria Dawn Preview

  • overall performance matters — it scores 52.3 and ranks #10 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Llama 3.1 Nemotron Ultra 253B v1

  • you are already invested in the NVIDIA ecosystem

At a glance

The differences that matter most.

Atria Dawn Preview
Shanghai AI Laboratory
Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
Core performance indexes
LLM Stats Score
52.3
#10
19.1
#206
Reasoning
50.5
#12
18.8
#205
Coding
36.2
#22
12.4
#146
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

12 reported for Atria Dawn Preview · 6 for Llama 3.1 Nemotron Ultra 253B v1

No common benchmarks found

Atria Dawn Preview and Llama 3.1 Nemotron Ultra 253B v1don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

491.0B diff

Atria Dawn Preview has 491.0B more parameters than Llama 3.1 Nemotron Ultra 253B v1, making it 194.1% larger.

Shanghai AI Laboratory
Atria Dawn Preview
744.0Bparameters
NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
253.0Bparameters
744.0B
Atria Dawn Preview
253.0B
Llama 3.1 Nemotron Ultra 253B v1

License

Usage and distribution terms

Atria Dawn Preview is licensed under MIT, while Llama 3.1 Nemotron Ultra 253B v1 uses Llama 3.1 Community License.

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

Atria Dawn Preview

MIT

Open weights

Llama 3.1 Nemotron Ultra 253B v1

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Atria Dawn Preview was released on 2026-09-11, while Llama 3.1 Nemotron Ultra 253B v1 was released on 2025-04-07.

Atria Dawn Preview is 17 months newer than Llama 3.1 Nemotron Ultra 253B v1.

Atria Dawn Preview

Sep 11, 2026

1 weeks ago

1.4yr newer
Llama 3.1 Nemotron Ultra 253B v1

Apr 7, 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 Atria Dawn Preview'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 Atria Dawn Preview's cutoff date.

Atria Dawn Preview

—

Llama 3.1 Nemotron Ultra 253B v1

Dec 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

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

Atria Dawn Preview
✓ Preferred
Llama 3.1 Nemotron Ultra 253B v1
Open in Playground

FAQ

Common questions about Atria Dawn Preview vs Llama 3.1 Nemotron Ultra 253B v1.

Which is better, Atria Dawn Preview or Llama 3.1 Nemotron Ultra 253B v1?

Atria Dawn Preview leads the LLM Stats Score 52.3 to 19.1. Atria Dawn Preview is made by Shanghai AI Laboratory and Llama 3.1 Nemotron Ultra 253B v1 is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Atria Dawn Preview compare to Llama 3.1 Nemotron Ultra 253B v1 in benchmarks?

Atria Dawn Preview scores DeepSearchQA: 96.0%, BrowseComp: 92.5%, CyberGym: 86.5%, MLE-Bench Lite: 86.2%, WideSearch: 81.9%. 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%.

What are the main differences between Atria Dawn Preview and Llama 3.1 Nemotron Ultra 253B v1?

Key differences include LLM Stats Score (52.3 vs 19.1), licensing (MIT vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Atria Dawn Preview and Llama 3.1 Nemotron Ultra 253B v1?

Atria Dawn Preview is developed by Shanghai AI Laboratory and Llama 3.1 Nemotron Ultra 253B v1 is developed by NVIDIA.

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