# Amazon Nova Experimental Chat 12 10 vs Hy4 preview

> Hy4 preview is the stronger model overall, scoring 44.6 to 42.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-12-10-vs-hy4-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 54.5 to 36.1.
- Hy4 preview has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| Provider | Amazon | Tencent |
| Noometry Index | 42.3 | 44.6 |
| Rank | 104 | 73 |
| Context | — | 1.05M |
| Input $/M | — | $0.83 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 12 10: 41.5 (#112)
- Hy4 preview: 51.4 (#36)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena WebDev | — | 1633 |
| LMArena Coding | 1430 | — |

## Reasoning

- Amazon Nova Experimental Chat 12 10: 28.1 (#93)
- Hy4 preview: 30.6 (#75)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| NYT Connections (extended) | — | 68.2% |
| LMArena Hard Prompts | 1427 | — |

## Math

- Amazon Nova Experimental Chat 12 10: 36.1 (#130)
- Hy4 preview: 54.5 (#37)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| ProofBench | — | 75% |
| LMArena Math | 1418 | — |

## Knowledge

- Amazon Nova Experimental Chat 12 10: 38.6 (#133)
- Hy4 preview: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena Expert | 1409 | — |

## Multilingual

- Amazon Nova Experimental Chat 12 10: 51.7 (#103)
- Hy4 preview: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena Non-English | 1399 | — |
| LMArena Chinese | 1440 | — |
| LMArena Russian | 1397 | — |

## Instruction Following

- Amazon Nova Experimental Chat 12 10: 73.4 (#117)
- Hy4 preview: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena Instruction Following | 1387 | — |

## Long Context

- Amazon Nova Experimental Chat 12 10: 42.4 (#120)
- Hy4 preview: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena Longer Query | 1391 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 12 10: 59.7 (#104)
- Hy4 preview: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Hy4 preview |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1351 | — |
| LMArena Multi-Turn | 1409 | — |

## FAQ

### Is Amazon Nova Experimental Chat 12 10 better than Hy4 preview?

Hy4 preview is the stronger model overall, scoring 44.6 to 42.3 on the Noometry Index.

### Is Amazon Nova Experimental Chat 12 10 or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.4 versus 41.5 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 12 10 and Hy4 preview share?

0 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Hy4 preview has 3.