# Amazon Nova Experimental Chat 12 10 vs MiMo-V2.5

> Amazon Nova Experimental Chat 12 10 and MiMo-V2.5 score almost the same on the Noometry Index (42.3 vs 43.0), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-12-10-vs-mimo-v2-5
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 12 10 scores higher in 2 categories and MiMo-V2.5 in 6 categories; 5 gaps are clear of the uncertainty.
- MiMo-V2.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| Provider | Amazon | Xiaomi |
| Noometry Index | 42.3 | 43.0 |
| Rank | 104 | 89 |
| Context | — | 1.05M |
| Input $/M | — | $0.14 |
| Output $/M | — | $0.28 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 12 10: 41.5 (#112)
- MiMo-V2.5: 43.6 (#75)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Coding | 1430 | 1469 |
| LMArena WebDev | — | 1438 |
| SciCode | — | 43.1% |
| ALE-Bench | — | 513.95 |

## Reasoning

- Amazon Nova Experimental Chat 12 10: 28.1 (#93)
- MiMo-V2.5: 27.8 (#98)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Hard Prompts | 1427 | 1450 |
| CritPt | — | 3.7% |

## Math

- Amazon Nova Experimental Chat 12 10: 36.1 (#130)
- MiMo-V2.5: 35.4 (#145)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Math | 1418 | 1436 |
| ProofBench | — | 16% |

## Knowledge

- Amazon Nova Experimental Chat 12 10: 38.6 (#133)
- MiMo-V2.5: 40.2 (#109)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Expert | 1409 | 1459 |

## Multimodal

- Amazon Nova Experimental Chat 12 10: —
- MiMo-V2.5: 39.0 (#53)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1245 |

## Multilingual

- Amazon Nova Experimental Chat 12 10: 51.7 (#103)
- MiMo-V2.5: 52.0 (#96)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | 1399 | 1404 |
| LMArena Chinese | 1440 | 1467 |
| LMArena Russian | 1397 | 1395 |
| LMArena French | — | 1447 |
| LMArena German | — | 1421 |
| LMArena Japanese | — | 1304 |
| LMArena Korean | — | 1363 |
| LMArena Spanish | — | 1412 |

## Instruction Following

- Amazon Nova Experimental Chat 12 10: 73.4 (#117)
- MiMo-V2.5: 75.7 (#55)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | 1387 | 1433 |

## Long Context

- Amazon Nova Experimental Chat 12 10: 42.4 (#120)
- MiMo-V2.5: 44.1 (#69)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | 1391 | 1444 |

## Writing & Preference

- Amazon Nova Experimental Chat 12 10: 59.7 (#104)
- MiMo-V2.5: 61.8 (#82)

| Benchmark | Amazon Nova Experimental Chat 12 10 | MiMo-V2.5 |
|---|---|---|
| LMArena Text | 1420 | 1427 |
| LMArena Creative Writing | 1351 | 1392 |
| LMArena Multi-Turn | 1409 | 1445 |

## FAQ

### Is Amazon Nova Experimental Chat 12 10 better than MiMo-V2.5?

Amazon Nova Experimental Chat 12 10 and MiMo-V2.5 score almost the same on the Noometry Index (42.3 vs 43.0), so choose on price, context window or the category you care about most.

### Is Amazon Nova Experimental Chat 12 10 or MiMo-V2.5 better for coding?

MiMo-V2.5 scores higher on coding benchmarks: 43.6 versus 41.5 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 12 10 and MiMo-V2.5 share?

12 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and MiMo-V2.5 has 23.