The AI arena is free today

Open Superagent

GPT-5.4 nano vs Nova 2 Pro

Nova 2 Pro leads the LLM Stats Score 30.8 to 26.6.

OpenAI · Amazon · Updated for 2026

Which is better?

Nova 2 Pro leads the overall LLM Stats Score 30.8 to 26.6, ranking #116 overall.

In the 3 individual benchmarks reported for both models, GPT-5.4 nano 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-5.4 nano

  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results
  • you want the most recent training data — it shipped Mar 2026

Choose Nova 2 Pro

  • overall performance matters — it scores 30.8 and ranks #116 on LLM Stats

At a glance

The differences that matter most.

GPT-5.4 nano
OpenAI
Nova 2 Pro
Amazon
Core performance indexes
LLM Stats Score
26.6
#150
30.8
#116
Reasoning
27.5
#136
30.7
#116
Coding
15.8
#128
19.4
#105
Agents
11.0
#112
12.0
#105
Cost, coverage & limits
Benchmark wins
2 of 3
1 of 3
Input price
$0.20 / M
— / M
Output price
$1.25 / M
— / M
Context window
400,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
GPT-5.4 nano
Nova 2 Pro
Math
21.5#145
25.9#105
Vision
9.5#125
12.3#103
Tool use
10.9#118
15.5#92
Multimodal
11.0#112
9.7#116
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

15 reported for GPT-5.4 nano · 18 for Nova 2 Pro

3 shared

GPT-5.4 nano outperforms in 2 benchmarks (GPQA, MMMU-Pro), while Nova 2 Pro is better at 1 benchmark (Tau2 Telecom).

GPT-5.4 nano shows notably better performance in the majority of benchmarks.

Sun Sep 20 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-5.4 nano specifies input context (400,000 tokens). Only GPT-5.4 nano specifies output context (128,000 tokens).

OpenAI
GPT-5.4 nano
Input400,000 tokens
Output128,000 tokens
Amazon
Nova 2 Pro
Input- tokens
Output- tokens
Sun Sep 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-5.4 nano and Nova 2 Pro support multimodal inputs.

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

GPT-5.4 nano

Text
Images
Audio
Video

Nova 2 Pro

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.

GPT-5.4 nano

Proprietary

Closed source

Nova 2 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.4 nano was released on 2026-03-17, while Nova 2 Pro was released on 2025-12-02.

GPT-5.4 nano is 4 months newer than Nova 2 Pro.

GPT-5.4 nano

Mar 17, 2026

6 months ago

3mo newer
Nova 2 Pro

Dec 2, 2025

9 months ago

Knowledge Cutoff

When training data ends

GPT-5.4 nano has a documented knowledge cutoff of 2025-08-31, while Nova 2 Pro's cutoff date is not specified.

We can confirm GPT-5.4 nano's training data extends to 2025-08-31, but cannot make a direct comparison without Nova 2 Pro's cutoff date.

GPT-5.4 nano

Aug 2025

Nova 2 Pro

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against GPT-5.4 nano and Nova 2 Pro side-by-side, then vote on the output you prefer.

GPT-5.4 nano
✓ Preferred
Nova 2 Pro
Open in Playground

FAQ

Common questions about GPT-5.4 nano vs Nova 2 Pro.

Which is better, GPT-5.4 nano or Nova 2 Pro?

Nova 2 Pro leads the LLM Stats Score 30.8 to 26.6. GPT-5.4 nano is made by OpenAI and Nova 2 Pro is made by Amazon. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-5.4 nano compare to Nova 2 Pro in benchmarks?

GPT-5.4 nano scores Tau2 Telecom: 92.5%, GPQA: 82.8%, OmniDocBench 1.5: 75.8%, Graphwalks BFS <128k: 73.4%, LiveBench: 70.1%. Nova 2 Pro scores Tau2 Telecom: 92.7%, AIME 2025: 92.3%, ScreenSpot: 88.1%, LongCodeBench: 84.0%, MMLU-Pro: 81.6%.

What are the context window sizes for GPT-5.4 nano and Nova 2 Pro?

GPT-5.4 nano supports 400K tokens and Nova 2 Pro 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-5.4 nano and Nova 2 Pro?

Key differences include LLM Stats Score (26.6 vs 30.8). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 nano and Nova 2 Pro?

GPT-5.4 nano is developed by OpenAI and Nova 2 Pro is developed by Amazon.

Related comparisons