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GLM-4.5-Air vs Llama 3.1 Nemotron Ultra 253B v1

GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1 are closely matched at 24.4 and 19.1 on the LLM Stats Score.

Zhipu AI · NVIDIA · Updated for 2026

Which is better?

GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1 are closely matched on the overall LLM Stats Score at 24.4 and 19.1.

In the 3 individual benchmarks reported for both models, GLM-4.5-Air 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 GLM-4.5-Air

  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results
  • you want the most recent training data — it shipped Jul 2025

Choose Llama 3.1 Nemotron Ultra 253B v1

  • you are already invested in the NVIDIA ecosystem

At a glance

The differences that matter most.

GLM-4.5-Air
Zhipu AI
Llama 3.1 Nemotron Ultra 253B v1
NVIDIA
Core performance indexes
LLM Stats Score
24.4
#167
19.1
#209
Reasoning
23.8
#165
18.8
#208
Coding
11.4
#159
12.4
#148
Cost, coverage & limits
Benchmark wins
2 of 3
1 of 3
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GLM-4.5-Air
Llama 3.1 Nemotron Ultra 253B v1
Math
22.5#136
15.6#215
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

14 reported for GLM-4.5-Air · 6 for Llama 3.1 Nemotron Ultra 253B v1

3 shared

GLM-4.5-Air outperforms in 2 benchmarks (LiveCodeBench, MATH-500), while Llama 3.1 Nemotron Ultra 253B v1 is better at 1 benchmark (GPQA).

GLM-4.5-Air shows notably better performance in the majority of benchmarks.

Tue Sep 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

147.0B diff

Llama 3.1 Nemotron Ultra 253B v1 has 147.0B more parameters than GLM-4.5-Air, making it 138.7% larger.

Zhipu AI
GLM-4.5-Air
106.0Bparameters
NVIDIA
Llama 3.1 Nemotron Ultra 253B v1
253.0Bparameters
106.0B
GLM-4.5-Air
253.0B
Llama 3.1 Nemotron Ultra 253B v1

License

Usage and distribution terms

GLM-4.5-Air 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.

GLM-4.5-Air

MIT

Open weights

Llama 3.1 Nemotron Ultra 253B v1

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

GLM-4.5-Air was released on 2025-07-28, while Llama 3.1 Nemotron Ultra 253B v1 was released on 2025-04-07.

GLM-4.5-Air is 4 months newer than Llama 3.1 Nemotron Ultra 253B v1.

GLM-4.5-Air

Jul 28, 2025

1.2 years ago

3mo newer
Llama 3.1 Nemotron Ultra 253B v1

Apr 7, 2025

1.5 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 GLM-4.5-Air'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 GLM-4.5-Air's cutoff date.

GLM-4.5-Air

—

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 GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1 side-by-side, then vote on the output you prefer.

GLM-4.5-Air
✓ Preferred
Llama 3.1 Nemotron Ultra 253B v1
Open in Playground

FAQ

Common questions about GLM-4.5-Air vs Llama 3.1 Nemotron Ultra 253B v1.

Which is better, GLM-4.5-Air or Llama 3.1 Nemotron Ultra 253B v1?

GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1 are closely matched on the LLM Stats Score at 24.4 and 19.1. GLM-4.5-Air is made by Zhipu AI 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 GLM-4.5-Air compare to Llama 3.1 Nemotron Ultra 253B v1 in benchmarks?

GLM-4.5-Air scores MATH-500: 98.1%, AIME 2024: 89.4%, MMLU-Pro: 81.4%, TAU-bench Retail: 77.9%, BFCL-v3: 76.4%. 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 GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1?

Key differences include LLM Stats Score (24.4 vs 19.1), licensing (MIT vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-4.5-Air and Llama 3.1 Nemotron Ultra 253B v1?

GLM-4.5-Air is developed by Zhipu AI and Llama 3.1 Nemotron Ultra 253B v1 is developed by NVIDIA.

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