# Amazon Nova Experimental Chat 10 20 vs MiMo-V2.5

> MiMo-V2.5 is the stronger model overall, scoring 43.0 to 41.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-mimo-v2-5
- 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 1 category and MiMo-V2.5 in 7 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where MiMo-V2.5 leads 61.8 to 56.9.
- MiMo-V2.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| Provider | Amazon | Xiaomi |
| Noometry Index | 41.5 | 43.0 |
| Rank | 122 | 89 |
| Context | — | 1.05M |
| Input $/M | — | $0.14 |
| Output $/M | — | $0.28 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.0 (#123)
- MiMo-V2.5: 43.6 (#75)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Coding | 1413 | 1469 |
| LMArena WebDev | — | 1438 |
| SciCode | — | 43.1% |
| ALE-Bench | — | 513.95 |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 27.3 (#110)
- MiMo-V2.5: 27.8 (#98)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1450 |
| CritPt | — | 3.7% |

## Math

- Amazon Nova Experimental Chat 10 20: 36.2 (#121)
- MiMo-V2.5: 35.4 (#145)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Math | 1425 | 1436 |
| ProofBench | — | 16% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 37.8 (#142)
- MiMo-V2.5: 40.2 (#109)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Expert | 1385 | 1459 |

## Multimodal

- Amazon Nova Experimental Chat 10 20: —
- MiMo-V2.5: 39.0 (#53)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1245 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.7 (#127)
- MiMo-V2.5: 52.0 (#96)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | 1372 | 1404 |
| LMArena Chinese | 1405 | 1467 |
| LMArena French | 1426 | 1447 |
| LMArena German | 1391 | 1421 |
| LMArena Japanese | 1355 | 1304 |
| LMArena Korean | 1327 | 1363 |
| LMArena Russian | 1371 | 1395 |
| LMArena Spanish | 1381 | 1412 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.3 (#136)
- MiMo-V2.5: 75.7 (#55)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | 1365 | 1433 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#128)
- MiMo-V2.5: 44.1 (#69)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | 1370 | 1444 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.9 (#131)
- MiMo-V2.5: 61.8 (#82)

| Benchmark | Amazon Nova Experimental Chat 10 20 | MiMo-V2.5 |
|---|---|---|
| LMArena Text | 1394 | 1427 |
| LMArena Creative Writing | 1318 | 1392 |
| LMArena Multi-Turn | 1364 | 1445 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than MiMo-V2.5?

MiMo-V2.5 is the stronger model overall, scoring 43.0 to 41.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or MiMo-V2.5 better for coding?

MiMo-V2.5 scores higher on coding benchmarks: 43.6 versus 41.0 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and MiMo-V2.5 share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and MiMo-V2.5 has 23.