Model comparison
Amazon Nova Experimental Chat 10 20 vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 41.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where GPT-5.5 Pro leads 83.8 to 36.2.
Side by side
| Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 41.5 | 64.3 |
| Released | — | 2026-04-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 17 | 14 |
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Category by category
Coding Not comparable
Amazon Nova Experimental Chat 10 20: 41.0 (#123), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1413 | — |
Reasoning GPT-5.5 Pro leads
Amazon Nova Experimental Chat 10 20: 27.3 (#110), GPT-5.5 Pro: 73.6 (#7)
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| LMArena Hard Prompts | 1396 | — |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| Epoch Capabilities Index | — | 162.45 |
Math GPT-5.5 Pro leads
Amazon Nova Experimental Chat 10 20: 36.2 (#121), GPT-5.5 Pro: 83.8 (#8)
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| LMArena Math | 1425 | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge GPT-5.5 Pro leads
Amazon Nova Experimental Chat 10 20: 37.8 (#142), GPT-5.5 Pro: 64.2 (#17)
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| LMArena Expert | 1385 | — |
Multilingual Not comparable
Amazon Nova Experimental Chat 10 20: 49.7 (#127), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1372 | — |
| LMArena Chinese | 1405 | — |
| LMArena French | 1426 | — |
| LMArena German | 1391 | — |
| LMArena Japanese | 1355 | — |
| LMArena Korean | 1327 | — |
| LMArena Russian | 1371 | — |
| LMArena Spanish | 1381 | — |
Instruction Following Not comparable
Amazon Nova Experimental Chat 10 20: 72.3 (#136), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1365 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 10 20: 41.7 (#128), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1370 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 10 20: 56.9 (#131), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1394 | — |
| LMArena Creative Writing | 1318 | — |
| LMArena Multi-Turn | 1364 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 41.5 on the Noometry Index.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and GPT-5.5 Pro share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and GPT-5.5 Pro has 14.