Model Comparison

Gemini 3.1 Pro vs Nemotron 3 Ultra (550B A55B)Which is better in 2026?

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Verdict: Gemini 3.1 Pro vs Nemotron 3 Ultra (550B A55B) — which is better?

Gemini 3.1 Pro (by Google) and Nemotron 3 Ultra (550B A55B) (by NVIDIA) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.1 Pro outperforms in 6 benchmarks (BrowseComp, Finance Agent v2, GPQA, Humanity's Last Exam, SciCode, SWE-Bench Verified), while Nemotron 3 Ultra (550B A55B) is better at 1 benchmark (GDPval-AA). Gemini 3.1 Pro significantly outperforms across most benchmarks.

Choose Gemini 3.1 Pro if…

  • you want the strongest raw capability — it leads on 6 of 7 shared benchmarks

Choose Nemotron 3 Ultra (550B A55B) if…

  • you want the most recent training data — it shipped Jun 2026
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 3.1 Pro outperforms in 6 benchmarks (BrowseComp, Finance Agent v2, GPQA, Humanity's Last Exam, SciCode, SWE-Bench Verified), while Nemotron 3 Ultra (550B A55B) is better at 1 benchmark (GDPval-AA).

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Wed Jun 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemini 3.1 Pro specifies input context (1,048,576 tokens). Only Gemini 3.1 Pro specifies output context (65,536 tokens).

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input- tokens
Output- tokens
Wed Jun 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3.1 Pro supports multimodal inputs, whereas Nemotron 3 Ultra (550B A55B) does not.

Gemini 3.1 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.1 Pro

Text
Images
Audio
Video

Nemotron 3 Ultra (550B A55B)

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.1 Pro is licensed under a proprietary license, while Nemotron 3 Ultra (550B A55B) uses OpenMDW License v1.1.

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

Gemini 3.1 Pro

Proprietary

Closed source

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Nemotron 3 Ultra (550B A55B) was released on 2026-06-04.

Nemotron 3 Ultra (550B A55B) is 4 months newer than Gemini 3.1 Pro.

Gemini 3.1 Pro

Feb 19, 2026

3 months ago

Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

1 weeks ago

3mo newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a knowledge cutoff of 2025-01-31, while Nemotron 3 Ultra (550B A55B) has a cutoff of 2025-09-30.

Nemotron 3 Ultra (550B A55B) has more recent training data (up to 2025-09-30), making it potentially better informed about events through that date compared to Gemini 3.1 Pro (2025-01-31).

Gemini 3.1 Pro

Jan 2025

Nemotron 3 Ultra (550B A55B)

Sep 2025

8 mo newer

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Supports multimodal inputs
Higher BrowseComp score (85.9% vs 44.4%)
Higher Finance Agent v2 score (43.0% vs 37.5%)
Higher GPQA score (94.3% vs 87.0%)
Higher Humanity's Last Exam score (51.4% vs 37.4%)
Higher SciCode score (59.0% vs 44.6%)
Higher SWE-Bench Verified score (80.6% vs 70.7%)
NVIDIA
Has open weights
Higher GDPval-AA score (39.4% vs 32.5%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
NVIDIA
Nemotron 3 Ultra (550B A55B)

FAQ

Common questions about Gemini 3.1 Pro vs Nemotron 3 Ultra (550B A55B).

Which is better, Gemini 3.1 Pro or Nemotron 3 Ultra (550B A55B)?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is made by Google and Nemotron 3 Ultra (550B A55B) is made by NVIDIA. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.1 Pro compare to Nemotron 3 Ultra (550B A55B) in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. Nemotron 3 Ultra (550B A55B) scores RULER: 94.7%, IMO-AnswerBench: 92.3%, PinchBench: 90.0%, LiveCodeBench v6: 89.0%, GPQA: 87.0%.

What are the context window sizes for Gemini 3.1 Pro and Nemotron 3 Ultra (550B A55B)?

Gemini 3.1 Pro supports 1.0M tokens and Nemotron 3 Ultra (550B A55B) 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 Gemini 3.1 Pro and Nemotron 3 Ultra (550B A55B)?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and Nemotron 3 Ultra (550B A55B)?

Gemini 3.1 Pro is developed by Google and Nemotron 3 Ultra (550B A55B) is developed by NVIDIA.

Related comparisons