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GPT-5.5 Pro vs Nemotron 3.5 Bolt (74B A9B 24GB)

GPT-5.5 Pro leads the LLM Stats Score 45.9 to 29.6.

OpenAI · NVIDIA · Updated for 2026

Which is better?

GPT-5.5 Pro leads the overall LLM Stats Score 45.9 to 29.6, ranking #38 overall.

In the 2 individual benchmarks reported for both models, GPT-5.5 Pro 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 GPT-5.5 Pro

  • overall performance matters — it scores 45.9 and ranks #38 on LLM Stats
  • your work emphasizes reasoning and agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results

Choose Nemotron 3.5 Bolt (74B A9B 24GB)

  • you want the most recent training data — it shipped Oct 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

GPT-5.5 Pro
OpenAI
Nemotron 3.5 Bolt (74B A9B 24GB)
NVIDIA
Core performance indexes
LLM Stats Score
45.9
#38
29.6
#146
Reasoning
45.9
#34
28.9
#146
Agents
31.1
#41
11.9
#127
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
$30.00 / M
— / M
Output price
$180.00 / M
— / M
Context window
1,050,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT-5.5 Pro
Nemotron 3.5 Bolt (74B A9B 24GB)
Math
37.6#31
23.4#140
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

5 reported for GPT-5.5 Pro · 10 for Nemotron 3.5 Bolt (74B A9B 24GB)

2 shared

GPT-5.5 Pro outperforms in 2 benchmarks (BrowseComp, Humanity's Last Exam), while Nemotron 3.5 Bolt (74B A9B 24GB) is better at 0 benchmarks.

GPT-5.5 Pro significantly outperforms across most benchmarks.

Fri Oct 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-5.5 Pro specifies input context (1,050,000 tokens). Only GPT-5.5 Pro specifies output context (128,000 tokens).

OpenAI
GPT-5.5 Pro
Input1,050,000 tokens
Output128,000 tokens
NVIDIA
Nemotron 3.5 Bolt (74B A9B 24GB)
Input- tokens
Output- tokens
Fri Oct 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-5.5 Pro and Nemotron 3.5 Bolt (74B A9B 24GB) support multimodal inputs.

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

GPT-5.5 Pro

Text
Images
Audio
Video

Nemotron 3.5 Bolt (74B A9B 24GB)

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.5 Pro is licensed under a proprietary license, while Nemotron 3.5 Bolt (74B A9B 24GB) uses OpenMDW License v1.1.

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

GPT-5.5 Pro

Proprietary

Closed source

Nemotron 3.5 Bolt (74B A9B 24GB)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

GPT-5.5 Pro was released on 2026-04-23, while Nemotron 3.5 Bolt (74B A9B 24GB) was released on 2026-10-15.

Nemotron 3.5 Bolt (74B A9B 24GB) is 6 months newer than GPT-5.5 Pro.

GPT-5.5 Pro

Apr 23, 2026

5 months ago

Nemotron 3.5 Bolt (74B A9B 24GB)

Oct 15, 2026

4 days ago

5mo newer

Knowledge Cutoff

When training data ends

GPT-5.5 Pro has a knowledge cutoff of 2025-12-01, while Nemotron 3.5 Bolt (74B A9B 24GB) has a cutoff of 2026-05-01.

Nemotron 3.5 Bolt (74B A9B 24GB) has more recent training data (up to 2026-05-01), making it potentially better informed about events through that date compared to GPT-5.5 Pro (2025-12-01).

GPT-5.5 Pro

Dec 2025

Nemotron 3.5 Bolt (74B A9B 24GB)

May 2026

5 mo newer

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-5.5 Pro and Nemotron 3.5 Bolt (74B A9B 24GB) side-by-side, then vote on the output you prefer.

GPT-5.5 Pro
✓ Preferred
Nemotron 3.5 Bolt (74B A9B 24GB)
Open in Playground

FAQ

Common questions about GPT-5.5 Pro vs Nemotron 3.5 Bolt (74B A9B 24GB).

Which is better, GPT-5.5 Pro or Nemotron 3.5 Bolt (74B A9B 24GB)?

GPT-5.5 Pro leads the LLM Stats Score 45.9 to 29.6. GPT-5.5 Pro is made by OpenAI and Nemotron 3.5 Bolt (74B A9B 24GB) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-5.5 Pro compare to Nemotron 3.5 Bolt (74B A9B 24GB) in benchmarks?

GPT-5.5 Pro scores BrowseComp: 90.1%, GDPval-MM: 82.3%, Humanity's Last Exam: 57.2%, FrontierMath: 39.6%, GeneBench: 33.2%. Nemotron 3.5 Bolt (74B A9B 24GB) scores PinchBench: 87.8%, GPQA: 86.4%, BrowseComp: 66.8%, AA-LCR: 64.1%, MCP Atlas: 52.2%.

What are the context window sizes for GPT-5.5 Pro and Nemotron 3.5 Bolt (74B A9B 24GB)?

GPT-5.5 Pro supports 1.1M tokens and Nemotron 3.5 Bolt (74B A9B 24GB) 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 GPT-5.5 Pro and Nemotron 3.5 Bolt (74B A9B 24GB)?

Key differences include LLM Stats Score (45.9 vs 29.6), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.5 Pro and Nemotron 3.5 Bolt (74B A9B 24GB)?

GPT-5.5 Pro is developed by OpenAI and Nemotron 3.5 Bolt (74B A9B 24GB) is developed by NVIDIA.

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