Model comparison
Amazon Nova Experimental Chat 10 09 vs GPT-5.4 nano
Amazon Nova Experimental Chat 10 09 and GPT-5.4 nano score almost the same on the Noometry Index (41.9 vs 41.9), so choose on price, context window or the category you care about most.
Last verified . 9 shared benchmarks.
Summary
- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 1 category and GPT-5.4 nano in 5 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 10 09 leads 27.3 to 23.7.
Side by side
| Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 41.9 | 41.9 |
| Released | — | 2026-03-17 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 128K |
| Input $ / M tokens | — | $0.20 |
| Output $ / M tokens | — | $1.25 |
| Results tracked | 9 | 40 |
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Category by category
Coding GPT-5.4 nano leads
Amazon Nova Experimental Chat 10 09: 40.2 (#145), GPT-5.4 nano: 43.6 (#84)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Coding | 1370 | 1405 |
| SciCode | — | 46.9% |
| WeirdML | — | 49.2% |
| ALE-Bench | — | 1,005 |
Reasoning Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 27.3 (#120), GPT-5.4 nano: 23.7 (#173)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1381 |
| ARC-AGI-2 | — | 5.7% |
| Kagi LLM Benchmark | — | 39.7% |
| ARC-AGI-1 | — | 51.5% |
| CritPt | — | 9.3% |
| Chess Puzzles | — | 30% |
| Mystery Game Puzzles | — | 9% |
| DTBench | — | 80.3% |
| LMCA | — | 36.9% |
| Epoch Capabilities Index | — | 145.81 |
| ForecastBench | — | 57.3 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, GPT-5.4 nano: 40.9 (#88)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 44.9% |
| FrontierMath Tier 4 | — | 12.2% |
| OTIS Mock AIME 2024-2025 | — | 87.8% |
| ProofBench | — | 5% |
| LMArena Math | — | 1406 |
| FrontierMath (Feb 2025 set) | — | 25.9% |
| FrontierMath Tier 4 (v1) | — | 6.3% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, GPT-5.4 nano: 41.9 (#103)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| GPQA Diamond | — | 78.5% |
| SimpleQA Verified | — | 11.7% |
| Vectara Hallucination Rate | — | 3.1% |
| LMArena Expert | — | 1396 |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 09: —, GPT-5.4 nano: 36.7 (#78)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Vision | — | 1196 |
Multilingual GPT-5.4 nano leads
Amazon Nova Experimental Chat 10 09: 47.3 (#150), GPT-5.4 nano: 48.6 (#140)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Non-English | 1340 | 1359 |
| LMArena Chinese | 1341 | 1392 |
| LMArena French | — | 1396 |
| LMArena German | — | 1367 |
| LMArena Japanese | — | 1343 |
| LMArena Korean | — | 1320 |
| LMArena Russian | — | 1363 |
| LMArena Spanish | — | 1371 |
Instruction Following GPT-5.4 nano leads
Amazon Nova Experimental Chat 10 09: 69.4 (#172), GPT-5.4 nano: 71.9 (#144)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Instruction Following | 1315 | 1362 |
Long Context GPT-5.4 nano leads
Amazon Nova Experimental Chat 10 09: 40.5 (#152), GPT-5.4 nano: 41.6 (#137)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Longer Query | 1333 | 1366 |
Writing & Preference GPT-5.4 nano leads
Amazon Nova Experimental Chat 10 09: 54.7 (#149), GPT-5.4 nano: 55.7 (#142)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.4 nano |
|---|---|---|
| LMArena Text | 1364 | 1372 |
| LMArena Creative Writing | 1307 | 1314 |
| LMArena Multi-Turn | 1355 | 1382 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than GPT-5.4 nano?
Amazon Nova Experimental Chat 10 09 and GPT-5.4 nano score almost the same on the Noometry Index (41.9 vs 41.9), so choose on price, context window or the category you care about most.
Is Amazon Nova Experimental Chat 10 09 or GPT-5.4 nano better for coding?
GPT-5.4 nano scores higher on coding benchmarks: 43.6 versus 40.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and GPT-5.4 nano share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and GPT-5.4 nano has 40.