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Grok-4 Heavy vs Nemotron 3.5 Super VL (120B A12B)

Grok-4 Heavy leads the LLM Stats Score 40.7 to 35.0.

xAI · NVIDIA · Updated for 2026

Which is better?

Grok-4 Heavy leads the overall LLM Stats Score 40.7 to 35.0, ranking #71 overall.

The models split the 2 individual benchmarks reported for both models evenly.

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

Choose Grok-4 Heavy

  • overall performance matters — it scores 40.7 and ranks #71 on LLM Stats

Choose Nemotron 3.5 Super VL (120B A12B)

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

At a glance

The differences that matter most.

Grok-4 Heavy
xAI
Nemotron 3.5 Super VL (120B A12B)
NVIDIA
Core performance indexes
LLM Stats Score
40.7
#71
35.0
#108
Reasoning
39.0
#73
36.2
#94
Coding
17.6
#134
21.0
#108
Cost, coverage & limits
Benchmark wins
1 of 2
1 of 2
Input price
— / M
$0.20 / M
Output price
— / M
$1.00 / M
Context window
—
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Grok-4 Heavy
Nemotron 3.5 Super VL (120B A12B)
Math
41.7#8
28.1#101
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

6 reported for Grok-4 Heavy · 19 for Nemotron 3.5 Super VL (120B A12B)

2 shared

Grok-4 Heavy outperforms in 1 benchmarks (Humanity's Last Exam), while Nemotron 3.5 Super VL (120B A12B) is better at 1 benchmark (GPQA).

Both models are evenly matched across the benchmarks.

Mon Oct 19 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Nemotron 3.5 Super VL (120B A12B) specifies input context (262,144 tokens). Only Nemotron 3.5 Super VL (120B A12B) specifies output context (262,144 tokens).

xAI
Grok-4 Heavy
Input- tokens
Output- tokens
NVIDIA
Nemotron 3.5 Super VL (120B A12B)
Input262,144 tokens
Output262,144 tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok-4 Heavy and Nemotron 3.5 Super VL (120B A12B) support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Grok-4 Heavy

Text
Images
Audio
Video

Nemotron 3.5 Super VL (120B A12B)

Text
Images
Audio
Video

License

Usage and distribution terms

Grok-4 Heavy is licensed under a proprietary license, while Nemotron 3.5 Super VL (120B A12B) uses OpenMDW License v1.1.

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

Grok-4 Heavy

Proprietary

Closed source

Nemotron 3.5 Super VL (120B A12B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Nemotron 3.5 Super VL (120B A12B) was released on 2026-10-15, while Grok-4 Heavy's release date is not specified.

We can confirm Nemotron 3.5 Super VL (120B A12B)'s release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.

Grok-4 Heavy

—

Nemotron 3.5 Super VL (120B A12B)

Oct 15, 2026

4 days ago

Knowledge Cutoff

When training data ends

Grok-4 Heavy has a documented knowledge cutoff of 2024-12-31, while Nemotron 3.5 Super VL (120B A12B)'s cutoff date is not specified.

We can confirm Grok-4 Heavy's training data extends to 2024-12-31, but cannot make a direct comparison without Nemotron 3.5 Super VL (120B A12B)'s cutoff date.

Grok-4 Heavy

Dec 2024

Nemotron 3.5 Super VL (120B A12B)

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Grok-4 Heavy and Nemotron 3.5 Super VL (120B A12B) side-by-side, then vote on the output you prefer.

Grok-4 Heavy
✓ Preferred
Nemotron 3.5 Super VL (120B A12B)
Open in Playground

FAQ

Common questions about Grok-4 Heavy vs Nemotron 3.5 Super VL (120B A12B).

Which is better, Grok-4 Heavy or Nemotron 3.5 Super VL (120B A12B)?

Grok-4 Heavy leads the LLM Stats Score 40.7 to 35.0. Grok-4 Heavy is made by xAI and Nemotron 3.5 Super VL (120B A12B) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok-4 Heavy compare to Nemotron 3.5 Super VL (120B A12B) in benchmarks?

Grok-4 Heavy scores AIME 2025: 100.0%, HMMT25: 96.7%, GPQA: 88.4%, LiveCodeBench: 79.4%, USAMO25: 61.9%. Nemotron 3.5 Super VL (120B A12B) scores GPQA: 89.5%, LiveCodeBench v6: 88.2%, CharXiv-R: 80.8%, MathVision: 78.2%, BrowseComp: 78.0%.

What are the context window sizes for Grok-4 Heavy and Nemotron 3.5 Super VL (120B A12B)?

Grok-4 Heavy supports an unknown number of tokens and Nemotron 3.5 Super VL (120B A12B) supports 262K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-4 Heavy and Nemotron 3.5 Super VL (120B A12B)?

Key differences include LLM Stats Score (40.7 vs 35.0), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-4 Heavy and Nemotron 3.5 Super VL (120B A12B)?

Grok-4 Heavy is developed by xAI and Nemotron 3.5 Super VL (120B A12B) is developed by NVIDIA.

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