The AI arena is free today

Open Superagent

Nova 2 Pro vs o4-mini

Nova 2 Pro and o4-mini are closely matched at 30.8 and 27.5 on the LLM Stats Score.

Amazon · OpenAI · Updated for 2026

Which is better?

Nova 2 Pro and o4-mini are closely matched on the overall LLM Stats Score at 30.8 and 27.5.

The models split the 4 individual benchmarks reported for both models evenly.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Nova 2 Pro

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

Choose o4-mini

  • you want predictable pricing at $1.10/M input and $4.40/M output

At a glance

The differences that matter most.

Core performance indexes
30.8
#115
27.5
#142
30.7
#115
27.5
#135
19.4
#105
11.9
#150
12.1
#104
7.2
#138
Cost, coverage & limits
Benchmark wins
2 of 4
2 of 4
Input price
— / M
$1.10 / M
Output price
— / M
$4.40 / M
Context window
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

5 shared
Index
Nova 2 Pro
o4-mini
25.9#105
27.6#97
12.3#103
15.8#89
15.5#90
11.6#110
23.5#8
12.4#62
9.7#116
21.8#62
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for Nova 2 Pro · 14 for o4-mini

4 shared

Nova 2 Pro outperforms in 2 benchmarks (Multi-Challenge, SWE-Bench Verified), while o4-mini is better at 1 benchmark (AIME 2025).

Nova 2 Pro has a slight edge in benchmark performance.

Sat Sep 12 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only o4-mini specifies input context (200,000 tokens). Only o4-mini specifies output context (100,000 tokens).

Amazon
Nova 2 Pro
Input- tokens
Output- tokens
OpenAI
o4-mini
Input200,000 tokens
Output100,000 tokens
Sat Sep 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Nova 2 Pro and o4-mini support multimodal inputs.

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

Nova 2 Pro

Text
Images
Audio
Video

o4-mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Nova 2 Pro

Proprietary

Closed source

o4-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Nova 2 Pro was released on 2025-12-02, while o4-mini was released on 2025-04-16.

Nova 2 Pro is 8 months newer than o4-mini.

Nova 2 Pro

Dec 2, 2025

9 months ago

7mo newer
o4-mini

Apr 16, 2025

1.4 years ago

Knowledge Cutoff

When training data ends

o4-mini has a documented knowledge cutoff of 2024-05-31, while Nova 2 Pro's cutoff date is not specified.

We can confirm o4-mini's training data extends to 2024-05-31, but cannot make a direct comparison without Nova 2 Pro's cutoff date.

Nova 2 Pro

o4-mini

May 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Nova 2 Pro and o4-mini side-by-side, then vote on the output you prefer.

Nova 2 Pro
✓ Preferred
o4-mini
Open in Playground

FAQ

Common questions about Nova 2 Pro vs o4-mini.

Which is better, Nova 2 Pro or o4-mini?

Nova 2 Pro and o4-mini are closely matched on the LLM Stats Score at 30.8 and 27.5. Nova 2 Pro is made by Amazon and o4-mini is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Nova 2 Pro compare to o4-mini in benchmarks?

Nova 2 Pro scores Tau2 Telecom: 92.7%, AIME 2025: 92.3%, ScreenSpot: 88.1%, LongCodeBench: 84.0%, MMLU-Pro: 81.6%. o4-mini scores AIME 2024: 93.4%, AIME 2025: 92.7%, MathVista: 84.3%, MMMU: 81.6%, GPQA: 81.4%.

What are the context window sizes for Nova 2 Pro and o4-mini?

Nova 2 Pro supports an unknown number of tokens and o4-mini supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Nova 2 Pro and o4-mini?

Key differences include LLM Stats Score (30.8 vs 27.5). See the full comparison above for benchmark-by-benchmark results.

Who makes Nova 2 Pro and o4-mini?

Nova 2 Pro is developed by Amazon and o4-mini is developed by OpenAI.