# Amazon Nova Experimental Chat 10 20 vs GPT-5.5 Pro

> GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 42.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-gpt-5-5-pro
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where GPT-5.5 Pro leads 84.0 to 39.0.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 42.1 | 64.3 |
| Rank | 118 | 8 |
| Context | — | 1.05M |
| Input $/M | — | $30 |
| Output $/M | — | $180 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- GPT-5.5 Pro: —

| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1412 | — |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- GPT-5.5 Pro: 73.3 (#10)

| 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 | — | 162.07 |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- GPT-5.5 Pro: 84.0 (#10)

| 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

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- GPT-5.5 Pro: 64.1 (#19)

| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| LMArena Expert | 1386 | — |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- GPT-5.5 Pro: —

| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1372 | — |
| LMArena Chinese | 1404 | — |
| LMArena French | 1425 | — |
| LMArena German | 1391 | — |
| LMArena Japanese | 1360 | — |
| LMArena Korean | 1324 | — |
| LMArena Russian | 1371 | — |
| LMArena Spanish | 1382 | — |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- GPT-5.5 Pro: —

| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1365 | — |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- GPT-5.5 Pro: —

| Benchmark | Amazon Nova Experimental Chat 10 20 | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1370 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- 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 | — |

## FAQ

### 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 42.1 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.