Model comparison
Amazon Nova Experimental Chat 10 09 vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 41.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.6 to 26.2.
Side by side
| Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 41.4 | 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 | 9 | 14 |
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Category by category
Coding Not comparable
Amazon Nova Experimental Chat 10 09: 39.6 (#142), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1371 | — |
Reasoning GPT-5.5 Pro leads
Amazon Nova Experimental Chat 10 09: 26.2 (#122), GPT-5.5 Pro: 73.6 (#7)
| Benchmark | Amazon Nova Experimental Chat 10 09 | 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 | 1356 | — |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| Epoch Capabilities Index | — | 162.45 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, GPT-5.5 Pro: 83.8 (#8)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, GPT-5.5 Pro: 64.2 (#17)
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
Multilingual Not comparable
Amazon Nova Experimental Chat 10 09: 47.5 (#145), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1341 | — |
| LMArena Chinese | 1345 | — |
Instruction Following Not comparable
Amazon Nova Experimental Chat 10 09: 69.7 (#167), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1316 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 10 09: 40.6 (#146), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1334 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 10 09: 55.0 (#144), GPT-5.5 Pro: —
| Benchmark | Amazon Nova Experimental Chat 10 09 | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1365 | — |
| LMArena Creative Writing | 1307 | — |
| LMArena Multi-Turn | 1354 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 41.4 on the Noometry Index.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and GPT-5.5 Pro share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and GPT-5.5 Pro has 14.