Model comparison
GPT-5.4 Pro vs Nova 2.0 Pro Preview
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 33.4 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. GPT-5.4 Pro scores higher in 2 categories and Nova 2.0 Pro Preview in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 70.7 to 22.4.
- The biggest single-benchmark swing is CritPt: 30% for GPT-5.4 Pro and 0% for Nova 2.0 Pro Preview.
Side by side
| GPT-5.4 Pro | Nova 2.0 Pro Preview | |
|---|---|---|
| Provider | OpenAI | Amazon |
| Noometry Index | 58.9 | 33.4 |
| Released | 2026-03-05 | 2025-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $180 | — |
| Results tracked | 16 | 3 |
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Category by category
Coding GPT-5.4 Pro leads
GPT-5.4 Pro: 43.2 (#90), Nova 2.0 Pro Preview: 40.8 (#133)
Agentic & Tool Use Not comparable
GPT-5.4 Pro: —, Nova 2.0 Pro Preview: 21.9 (#136)
| Benchmark | GPT-5.4 Pro | Nova 2.0 Pro Preview |
|---|---|---|
| GDP.pdf | — | 2% |
Reasoning GPT-5.4 Pro leads
GPT-5.4 Pro: 70.7 (#13), Nova 2.0 Pro Preview: 22.4 (#194)
| Benchmark | GPT-5.4 Pro | Nova 2.0 Pro Preview |
|---|---|---|
| CritPt | 30% | 0% |
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| Epoch Capabilities Index | 158.93 | — |
Math Not comparable
GPT-5.4 Pro: 72.4 (#22), Nova 2.0 Pro Preview: —
| Benchmark | GPT-5.4 Pro | Nova 2.0 Pro Preview |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |
Knowledge Not comparable
GPT-5.4 Pro: 68.3 (#7), Nova 2.0 Pro Preview: —
| Benchmark | GPT-5.4 Pro | Nova 2.0 Pro Preview |
|---|---|---|
| GPQA Diamond | 94.6% | — |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
Frequently asked questions
Is GPT-5.4 Pro better than Nova 2.0 Pro Preview?
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 33.4 on the Noometry Index.
Is GPT-5.4 Pro or Nova 2.0 Pro Preview better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 43.2 versus 40.8 in the Noometry coding category.
How many benchmarks do GPT-5.4 Pro and Nova 2.0 Pro Preview share?
1 benchmark has published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Nova 2.0 Pro Preview has 3.