Model Comparison

GPT OSS 120B High vs Nova 2 OmniWhich is better in 2026?

GPT OSS 120B High shows notably better performance in the majority of benchmarks.

Verdict: GPT OSS 120B High vs Nova 2 Omni — which is better?

GPT OSS 120B High (by OpenAI) and Nova 2 Omni (by Amazon) 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.

GPT OSS 120B High outperforms in 2 benchmarks (AIME 2025, IFBench), while Nova 2 Omni is better at 0 benchmarks. GPT OSS 120B High shows notably better performance in the majority of benchmarks.

Choose GPT OSS 120B High if…

  • you want the strongest raw capability — it leads on 2 of 3 shared benchmarks
  • you need open weights you can self-host or fine-tune

Choose Nova 2 Omni if…

  • you want the most recent training data — it shipped Dec 2025

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

GPT OSS 120B High outperforms in 2 benchmarks (AIME 2025, IFBench), while Nova 2 Omni is better at 0 benchmarks.

GPT OSS 120B High shows notably better performance in the majority of benchmarks.

Mon Jul 27 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT OSS 120B High specifies input context (131,072 tokens). Only GPT OSS 120B High specifies output context (131,072 tokens).

OpenAI
GPT OSS 120B High
Input131,072 tokens
Output131,072 tokens
Amazon
Nova 2 Omni
Input- tokens
Output- tokens
Mon Jul 27 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Nova 2 Omni supports multimodal inputs, whereas GPT OSS 120B High does not.

Nova 2 Omni can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT OSS 120B High

Text
Images
Audio
Video

Nova 2 Omni

Text
Images
Audio
Video

License

Usage and distribution terms

GPT OSS 120B High is licensed under Apache 2.0, while Nova 2 Omni uses a proprietary license.

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

GPT OSS 120B High

Apache 2.0

Open weights

Nova 2 Omni

Proprietary

Closed source

Release Timeline

When each model was launched

GPT OSS 120B High was released on 2025-08-05, while Nova 2 Omni was released on 2025-12-02.

Nova 2 Omni is 4 months newer than GPT OSS 120B High.

GPT OSS 120B High

Aug 5, 2025

11 months ago

Nova 2 Omni

Dec 2, 2025

7 months ago

3mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (131,072 tokens)
Has open weights
Higher AIME 2025 score (92.5% vs 92.1%)
Higher IFBench score (69.5% vs 68.7%)
Amazon
Supports multimodal inputs

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT OSS 120B High and Nova 2 Omni side-by-side, then vote on the output you prefer.

GPT OSS 120B High
✓ Preferred
Nova 2 Omni
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT OSS 120B High
Amazon
Nova 2 Omni

FAQ

Common questions about GPT OSS 120B High vs Nova 2 Omni.

Which is better, GPT OSS 120B High or Nova 2 Omni?

GPT OSS 120B High shows notably better performance in the majority of benchmarks. GPT OSS 120B High is made by OpenAI and Nova 2 Omni is made by Amazon. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT OSS 120B High compare to Nova 2 Omni in benchmarks?

GPT OSS 120B High scores AIME 2025: 92.5%, MMMLU: 83.8%, LiveCodeBench v6: 81.9%, GPQA: 80.9%, MMLU-Pro: 80.7%. Nova 2 Omni scores AIME 2025: 92.1%, RefCOCOg: 86.3%, ScreenSpot: 85.4%, MMLU-Pro: 80.7%, Tau2 Telecom: 80.0%.

What are the context window sizes for GPT OSS 120B High and Nova 2 Omni?

GPT OSS 120B High supports 131K tokens and Nova 2 Omni 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 OSS 120B High and Nova 2 Omni?

Key differences include multimodal support (no vs yes), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT OSS 120B High and Nova 2 Omni?

GPT OSS 120B High is developed by OpenAI and Nova 2 Omni is developed by Amazon.

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