# Amazon Nova Experimental Chat 10 20 vs Amazon Nova Pro

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 31.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-amazon-nova-pro
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 8 categories and Amazon Nova Pro in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Amazon Nova Experimental Chat 10 20 leads 56.6 to 43.9.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| Provider | Amazon | Amazon |
| Noometry Index | 42.1 | 31.0 |
| Rank | 118 | 281 |
| Context | — | 300K |
| Input $/M | — | $0.80 |
| Output $/M | — | $3.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- Amazon Nova Pro: 35.1 (#229)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Coding | 1412 | 1270 |
| LiveBench Coding | — | 38.1% |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 10 20: —
- Amazon Nova Pro: 16.7 (#147)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 25% |
| TheAgentCompany | — | 1.7% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- Amazon Nova Pro: 20.0 (#243)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1246 |
| LiveBench Reasoning | — | 32.6% |
| LiveBench Data Analysis | — | 48.3% |
| Epoch Capabilities Index | — | 123.8 |
| LiveBench | — | 43.5% |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- Amazon Nova Pro: 28.5 (#243)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Math | 1425 | 1252 |
| Omni-MATH | — | 24.2% |
| LiveBench Math | — | 38% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- Amazon Nova Pro: 27.4 (#250)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Expert | 1386 | 1211 |
| Humanity's Last Exam | — | 4.4% |
| MMLU-Pro | — | 67.3% |
| Confabulations | — | 30.1% |
| Vectara Hallucination Rate | — | 5.1% |
| GPQA (HELM) | — | 44.6% |
| MMLU | — | 82% |

## Multimodal

- Amazon Nova Experimental Chat 10 20: —
- Amazon Nova Pro: 25.0 (#126)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Vision | — | 980 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- Amazon Nova Pro: 39.7 (#223)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Non-English | 1372 | 1234 |
| LMArena Chinese | 1404 | 1244 |
| LMArena French | 1425 | 1271 |
| LMArena German | 1391 | 1243 |
| LMArena Japanese | 1360 | 1200 |
| LMArena Korean | 1324 | 1203 |
| LMArena Russian | 1371 | 1240 |
| LMArena Spanish | 1382 | 1182 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- Amazon Nova Pro: 64.9 (#226)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Instruction Following | 1365 | 1235 |
| LiveBench Instruction Following | — | 67.1% |
| IFEval | — | 81.5% |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- Amazon Nova Pro: 38.1 (#205)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Longer Query | 1370 | 1255 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- Amazon Nova Pro: 43.9 (#226)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Amazon Nova Pro |
|---|---|---|
| LMArena Text | 1394 | 1259 |
| LMArena Creative Writing | 1318 | 1212 |
| LMArena Multi-Turn | 1364 | 1246 |
| Short-Story Creative Writing | — | 60.5% |
| WildBench | — | 77.7% |
| LiveBench Language | — | 37% |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Amazon Nova Pro?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 31.0 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Amazon Nova Pro better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 35.1 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and Amazon Nova Pro share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Amazon Nova Pro has 38.