# Amazon Nova Experimental Chat 10 20 vs Gemma 4 31B IT

> Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 42.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-gemma-4-31b-it
- Last updated: 2026-10-12
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 2 categories and Gemma 4 31B IT in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Gemma 4 31B IT leads 53.8 to 49.5.
- Gemma 4 31B IT has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| Provider | Amazon | Google |
| Noometry Index | 42.1 | 43.5 |
| Rank | 118 | 90 |
| Context | — | 262K |
| Input $/M | — | $0.09 |
| Output $/M | — | $0.34 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- Gemma 4 31B IT: 42.3 (#108)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Coding | 1412 | 1459 |
| LMArena WebDev | — | 1366 |
| SciCode | — | 43.4% |
| WeirdML | — | 52.3% |
| ALE-Bench | — | 925.5 |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- Gemma 4 31B IT: 27.2 (#122)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1448 |
| Kagi LLM Benchmark | — | 63.5% |
| NYT Connections (extended) | — | 70.6% |
| CritPt | — | 1.4% |
| Chess Puzzles | — | 5% |
| Thematic Generalization | — | 53% |
| DTBench | — | 82.7% |
| LMCA | — | 39.3% |
| Surface Evolver Bench | — | 30.6% |
| Epoch Capabilities Index | — | 142.74 |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- Gemma 4 31B IT: 43.2 (#81)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Math | 1425 | 1465 |
| OTIS Mock AIME 2024-2025 | — | 73.3% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- Gemma 4 31B IT: 37.9 (#151)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Expert | 1386 | 1465 |
| GPQA Diamond | — | 75.8% |
| SimpleQA Verified | — | 10.4% |
| Vectara Hallucination Rate | — | 7.4% |

## Multimodal

- Amazon Nova Experimental Chat 10 20: —
- Gemma 4 31B IT: 41.6 (#34)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Vision | — | 1277 |
| LMArena Document | — | 1425 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- Gemma 4 31B IT: 53.8 (#57)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Non-English | 1372 | 1431 |
| LMArena Chinese | 1404 | 1476 |
| LMArena French | 1425 | 1435 |
| LMArena Russian | 1371 | 1460 |
| LMArena Spanish | 1382 | 1444 |
| LMArena German | 1391 | — |
| LMArena Japanese | 1360 | — |
| LMArena Korean | 1324 | — |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- Gemma 4 31B IT: 75.5 (#61)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Instruction Following | 1365 | 1433 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- Gemma 4 31B IT: 44.2 (#71)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Longer Query | 1370 | 1446 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- Gemma 4 31B IT: 60.5 (#96)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemma 4 31B IT |
|---|---|---|
| LMArena Text | 1394 | 1443 |
| LMArena Creative Writing | 1318 | 1415 |
| LMArena Multi-Turn | 1364 | 1452 |
| EQ-Bench Creative Writing | — | 1368 |
| EQ-Bench 4 | — | 1120 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Gemma 4 31B IT?

Gemma 4 31B IT is the stronger model overall, scoring 43.5 to 42.1 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Gemma 4 31B IT better for coding?

They score almost the same on coding (41.6 vs 42.3); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and Gemma 4 31B IT share?

14 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Gemma 4 31B IT has 35.