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ERNIE 5.5 Flash Preview vs Llama 3.1 Nemotron Ultra 253B v1

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 18.5.

Baidu · NVIDIA · Updated for 2026

Which is better?

ERNIE 5.5 Flash Preview leads the overall LLM Stats Score 52.3 to 18.5, ranking #13 overall.

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

Choose ERNIE 5.5 Flash Preview

  • overall performance matters — it scores 52.3 and ranks #13 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

Choose Llama 3.1 Nemotron Ultra 253B v1

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

ERNIE 5.5 Flash Preview
Baidu
Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
Core performance indexes
LLM Stats Score
52.3
#13
18.5
#252
Reasoning
50.7
#12
18.2
#248
Coding
37.9
#20
12.3
#182
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.28 / M
— / M
Output price
$1.13 / M
— / M
Context window
1,048,576
—

Individual benchmarks

13 reported for ERNIE 5.5 Flash Preview · 6 for Llama 3.1 Nemotron Ultra 253B v1

No common benchmarks found

ERNIE 5.5 Flash 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

27.0B diff

ERNIE 5.5 Flash Preview has 27.0B more parameters than Llama 3.1 Nemotron Ultra 253B v1, making it 10.7% larger.

Baidu
ERNIE 5.5 Flash Preview
280.0Bparameters
NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
253.0Bparameters
280.0B
ERNIE 5.5 Flash Preview
253.0B
Llama 3.1 Nemotron Ultra 253B v1

Context Window

Maximum input and output token capacity

Only ERNIE 5.5 Flash Preview specifies input context (1,048,576 tokens). Only ERNIE 5.5 Flash Preview specifies output context (1,048,576 tokens).

Baidu
ERNIE 5.5 Flash Preview
Input1,048,576 tokens
Output1,048,576 tokens
NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
Input- tokens
Output- tokens
Sat Nov 14 2026 • llm-stats.com

License

Usage and distribution terms

ERNIE 5.5 Flash Preview is licensed under a proprietary license, 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.

ERNIE 5.5 Flash Preview

Proprietary

Closed source

Llama 3.1 Nemotron Ultra 253B v1

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

ERNIE 5.5 Flash Preview was released on 2026-11-11, while Llama 3.1 Nemotron Ultra 253B v1 was released on 2025-04-07.

ERNIE 5.5 Flash Preview is 19 months newer than Llama 3.1 Nemotron Ultra 253B v1.

ERNIE 5.5 Flash Preview

Nov 11, 2026

2 days ago

1.6yr newer
Llama 3.1 Nemotron Ultra 253B v1

Apr 7, 2025

1.6 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 ERNIE 5.5 Flash 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 ERNIE 5.5 Flash Preview's cutoff date.

ERNIE 5.5 Flash Preview

—

Llama 3.1 Nemotron Ultra 253B v1

Dec 2023

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against ERNIE 5.5 Flash Preview and Llama 3.1 Nemotron Ultra 253B v1 side-by-side, then vote on the output you prefer.

ERNIE 5.5 Flash Preview
✓ Preferred
Llama 3.1 Nemotron Ultra 253B v1
Open in Playground

FAQ

Common questions about ERNIE 5.5 Flash Preview vs Llama 3.1 Nemotron Ultra 253B v1.

Which is better, ERNIE 5.5 Flash Preview or Llama 3.1 Nemotron Ultra 253B v1?

ERNIE 5.5 Flash Preview leads the LLM Stats Score 52.3 to 18.5. ERNIE 5.5 Flash Preview is made by Baidu 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 ERNIE 5.5 Flash Preview compare to Llama 3.1 Nemotron Ultra 253B v1 in benchmarks?

ERNIE 5.5 Flash Preview scores BrowseComp: 87.4%, DRACO: 84.9%, MCP Atlas: 84.6%, DeepSWE 1.1: 71.2%, OfficeQA Pro: 67.9%. 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 context window sizes for ERNIE 5.5 Flash Preview and Llama 3.1 Nemotron Ultra 253B v1?

ERNIE 5.5 Flash Preview supports 1.0M tokens and Llama 3.1 Nemotron Ultra 253B v1 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between ERNIE 5.5 Flash Preview and Llama 3.1 Nemotron Ultra 253B v1?

Key differences include LLM Stats Score (52.3 vs 18.5), licensing (Proprietary vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes ERNIE 5.5 Flash Preview and Llama 3.1 Nemotron Ultra 253B v1?

ERNIE 5.5 Flash Preview is developed by Baidu and Llama 3.1 Nemotron Ultra 253B v1 is developed by NVIDIA.

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