Grok-4 Heavy vs Nemotron Nano 9B v2
Grok-4 Heavy leads the LLM Stats Score 40.7 to 18.5.
xAI · NVIDIA · Updated for 2026
Which is better?
Grok-4 Heavy leads the overall LLM Stats Score 40.7 to 18.5, ranking #53 overall.
In the 3 individual benchmarks reported for both models, Grok-4 Heavy wins 3; 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 Grok-4 Heavy
- overall performance matters — it scores 40.7 and ranks #53 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
Choose Nemotron Nano 9B v2
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
6 reported for Grok-4 Heavy · 6 for Nemotron Nano 9B v2
Grok-4 Heavy outperforms in 3 benchmarks (AIME 2025, GPQA, LiveCodeBench), while Nemotron Nano 9B v2 is better at 0 benchmarks.
Grok-4 Heavy significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Input capabilities
Documented input modalities across available providers
Grok-4 Heavy supports multimodal inputs, whereas Nemotron Nano 9B v2 does not.
Grok-4 Heavy can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-4 Heavy
Nemotron Nano 9B v2
License
Usage and distribution terms
Grok-4 Heavy is licensed under a proprietary license, while Nemotron Nano 9B v2 uses NVIDIA Open Model License Agreement .
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
NVIDIA Open Model License Agreement
Open weights
Release Timeline
When each model was launched
Nemotron Nano 9B v2 was released on 2025-08-18, while Grok-4 Heavy's release date is not specified.
We can confirm Nemotron Nano 9B v2's release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.
—
Aug 18, 2025
1.1 years ago
Knowledge Cutoff
When training data ends
Grok-4 Heavy has a knowledge cutoff of 2024-12-31, while Nemotron Nano 9B v2 has a cutoff of 2024-09-01.
Grok-4 Heavy has more recent training data (up to 2024-12-31), making it potentially better informed about events through that date compared to Nemotron Nano 9B v2 (2024-09-01).
Dec 2024
3 mo newerSep 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Heavy and Nemotron Nano 9B v2 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Heavy vs Nemotron Nano 9B v2.