# Amazon Nova Experimental Chat 10 20 vs Yi-Lightning

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-yi-lightning
- 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-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 10 20 leads 41.0 to 27.0.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| Provider | Amazon | 01.AI |
| Noometry Index | 41.5 | 36.5 |
| Rank | 122 | 206 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.0 (#123)
- Yi-Lightning: 27.0 (#315)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1413 | 1313 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 27.3 (#110)
- Yi-Lightning: 24.9 (#137)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1302 |

## Math

- Amazon Nova Experimental Chat 10 20: 36.2 (#121)
- Yi-Lightning: 33.5 (#173)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Math | 1425 | 1300 |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 37.8 (#142)
- Yi-Lightning: 34.8 (#182)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1385 | 1286 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.7 (#127)
- Yi-Lightning: 42.4 (#191)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1372 | 1269 |
| LMArena Chinese | 1405 | 1320 |
| LMArena French | 1426 | 1304 |
| LMArena German | 1391 | 1267 |
| LMArena Japanese | 1355 | 1228 |
| LMArena Korean | 1327 | 1192 |
| LMArena Russian | 1371 | 1255 |
| LMArena Spanish | 1381 | 1315 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.3 (#136)
- Yi-Lightning: 67.6 (#191)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1365 | 1278 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#128)
- Yi-Lightning: 39.4 (#176)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1370 | 1297 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.9 (#131)
- Yi-Lightning: 50.4 (#178)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Yi-Lightning |
|---|---|---|
| LMArena Text | 1394 | 1302 |
| LMArena Creative Writing | 1318 | 1280 |
| LMArena Multi-Turn | 1364 | 1311 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Yi-Lightning?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 36.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Yi-Lightning better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.0 versus 27.0 in the Noometry coding category.

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

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Yi-Lightning has 18.