# Amazon Nova Experimental Chat 10 20 vs Yi-1.5-34B

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 30.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-yi-1-5-34b
- 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 Yi-1.5-34B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Amazon Nova Experimental Chat 10 20 leads 38.5 to 14.8.
- Yi-1.5-34B has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| Provider | Amazon | 01.AI |
| Noometry Index | 42.1 | 30.6 |
| Rank | 118 | 289 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- Yi-1.5-34B: 32.4 (#272)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 1412 | 1169 |
| BigCodeBench Instruct | — | 33.9% |
| BigCodeBench Complete | — | 43.8% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- Yi-1.5-34B: 22.5 (#191)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1160 |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- Yi-1.5-34B: 27.5 (#249)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 1425 | 1182 |
| MATH Level 5 | — | 25.5% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- Yi-1.5-34B: 14.8 (#295)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Expert | 1386 | 1144 |
| GPQA Diamond | — | 32% |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- Yi-1.5-34B: 32.3 (#256)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 1372 | 1121 |
| LMArena Chinese | 1404 | 1213 |
| LMArena French | 1425 | 1156 |
| LMArena German | 1391 | 1111 |
| LMArena Japanese | 1360 | 1021 |
| LMArena Korean | 1324 | 1005 |
| LMArena Russian | 1371 | 1091 |
| LMArena Spanish | 1382 | 1121 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- Yi-1.5-34B: 59.2 (#257)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 1365 | 1139 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- Yi-1.5-34B: 34.6 (#248)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | 1370 | 1143 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- Yi-1.5-34B: 37.4 (#257)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 1394 | 1173 |
| LMArena Creative Writing | 1318 | 1135 |
| LMArena Multi-Turn | 1364 | 1153 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Yi-1.5-34B?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 30.6 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Yi-1.5-34B better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 32.4 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and Yi-1.5-34B share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Yi-1.5-34B has 21.