Model Comparison

Mistral Medium 3.5 vs Nemotron 3 Ultra (550B A55B)Which is better in 2026?

Nemotron 3 Ultra (550B A55B) has a slight edge in benchmark performance.

Verdict: Mistral Medium 3.5 vs Nemotron 3 Ultra (550B A55B) — which is better?

Mistral Medium 3.5 (by Mistral AI) 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.

Mistral Medium 3.5 outperforms in 2 benchmarks (BrowseComp, SWE-Bench Verified), while Nemotron 3 Ultra (550B A55B) is better at 3 benchmarks (Finance Agent v2, GDPval-AA, IFBench). Nemotron 3 Ultra (550B A55B) has a slight edge in benchmark performance.

Choose Mistral Medium 3.5 if…

  • you want predictable pricing at $1.50/M input and $7.50/M output

Choose Nemotron 3 Ultra (550B A55B) if…

  • you want the strongest raw capability — it leads on 3 of 5 shared benchmarks
  • you want the most recent training data — it shipped Jun 2026

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Mistral Medium 3.5 outperforms in 2 benchmarks (BrowseComp, SWE-Bench Verified), while Nemotron 3 Ultra (550B A55B) is better at 3 benchmarks (Finance Agent v2, GDPval-AA, IFBench).

Nemotron 3 Ultra (550B A55B) has a slight edge in benchmark performance.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

422.0B diff

Nemotron 3 Ultra (550B A55B) has 422.0B more parameters than Mistral Medium 3.5, making it 329.7% larger.

Mistral AI
Mistral Medium 3.5
128.0Bparameters
NVIDIA
Nemotron 3 Ultra (550B A55B)
550.0Bparameters
128.0B
Mistral Medium 3.5
550.0B
Nemotron 3 Ultra (550B A55B)

Context Window

Maximum input and output token capacity

Only Mistral Medium 3.5 specifies input context (256,000 tokens). Only Mistral Medium 3.5 specifies output context (256,000 tokens).

Mistral AI
Mistral Medium 3.5
Input256,000 tokens
Output256,000 tokens
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input- tokens
Output- tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Mistral Medium 3.5 supports multimodal inputs, whereas Nemotron 3 Ultra (550B A55B) does not.

Mistral Medium 3.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Mistral Medium 3.5

Text
Images
Audio
Video

Nemotron 3 Ultra (550B A55B)

Text
Images
Audio
Video

License

Usage and distribution terms

Mistral Medium 3.5 is licensed under Modified MIT 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.

Mistral Medium 3.5

Modified MIT License

Open weights

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Mistral Medium 3.5 was released on 2026-04-29, while Nemotron 3 Ultra (550B A55B) was released on 2026-06-04.

Nemotron 3 Ultra (550B A55B) is 1 month newer than Mistral Medium 3.5.

Mistral Medium 3.5

Apr 29, 2026

2 months ago

Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

1 months ago

1mo newer

Knowledge Cutoff

When training data ends

Nemotron 3 Ultra (550B A55B) has a documented knowledge cutoff of 2025-09-30, while Mistral Medium 3.5's cutoff date is not specified.

We can confirm Nemotron 3 Ultra (550B A55B)'s training data extends to 2025-09-30, but cannot make a direct comparison without Mistral Medium 3.5's cutoff date.

Mistral Medium 3.5

—

Nemotron 3 Ultra (550B A55B)

Sep 2025

Outputs Comparison

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Key Takeaways

Mistral AI
Larger context window (256,000 tokens)
Supports multimodal inputs
Higher BrowseComp score (48.6% vs 44.4%)
Higher SWE-Bench Verified score (77.6% vs 70.7%)
NVIDIA
Higher Finance Agent v2 score (37.5% vs 32.1%)
Higher GDPval-AA score (39.4% vs 30.9%)
Higher IFBench score (81.7% vs 69.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Mistral Medium 3.5 and Nemotron 3 Ultra (550B A55B) side-by-side, then vote on the output you prefer.

Mistral Medium 3.5
✓ Preferred
Nemotron 3 Ultra (550B A55B)
Open in Playground
AI Model Comparison Table
Feature
Mistral AI
Mistral Medium 3.5
NVIDIA
Nemotron 3 Ultra (550B A55B)

FAQ

Common questions about Mistral Medium 3.5 vs Nemotron 3 Ultra (550B A55B).

Which is better, Mistral Medium 3.5 or Nemotron 3 Ultra (550B A55B)?

Nemotron 3 Ultra (550B A55B) has a slight edge in benchmark performance. Mistral Medium 3.5 is made by Mistral AI 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 Mistral Medium 3.5 compare to Nemotron 3 Ultra (550B A55B) in benchmarks?

Mistral Medium 3.5 scores COLLIE: 95.8%, Tau3 Telecom: 91.4%, AIME 2025: 86.3%, SWE-Bench Verified: 77.6%, Tau3 Retail: 76.1%. 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 Mistral Medium 3.5 and Nemotron 3 Ultra (550B A55B)?

Mistral Medium 3.5 supports 256K 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 Mistral Medium 3.5 and Nemotron 3 Ultra (550B A55B)?

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

Who makes Mistral Medium 3.5 and Nemotron 3 Ultra (550B A55B)?

Mistral Medium 3.5 is developed by Mistral AI and Nemotron 3 Ultra (550B A55B) is developed by NVIDIA.

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