# Amazon Nova Pro vs Kimi K2.5 Instant

> Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 31.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-pro-vs-kimi-k2-5-instant
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Pro scores higher in 0 categories and Kimi K2.5 Instant in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2.5 Instant leads 60.6 to 43.9.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| Provider | Amazon | Moonshot AI |
| Noometry Index | 31.0 | 43.6 |
| Rank | 281 | 89 |
| Context | 300K | — |
| Input $/M | $0.80 | — |
| Output $/M | $3.20 | — |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Pro: 35.1 (#229)
- Kimi K2.5 Instant: 42.6 (#97)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Coding | 1270 | 1484 |
| LMArena WebDev | — | 1404 |
| LiveBench Coding | 38.1% | — |

## Agentic & Tool Use

- Amazon Nova Pro: 16.7 (#147)
- Kimi K2.5 Instant: —

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| Berkeley Function Calling Leaderboard | 25% | — |
| TheAgentCompany | 1.7% | — |

## Reasoning

- Amazon Nova Pro: 20.0 (#243)
- Kimi K2.5 Instant: 29.7 (#90)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1246 | 1443 |
| LiveBench Reasoning | 32.6% | — |
| LiveBench Data Analysis | 48.3% | — |
| Epoch Capabilities Index | 123.8 | — |
| LiveBench | 43.5% | — |

## Math

- Amazon Nova Pro: 28.5 (#243)
- Kimi K2.5 Instant: 39.4 (#105)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1252 | 1442 |
| Omni-MATH | 24.2% | — |
| LiveBench Math | 38% | — |

## Knowledge

- Amazon Nova Pro: 27.4 (#250)
- Kimi K2.5 Instant: 40.2 (#123)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1211 | 1440 |
| Humanity's Last Exam | 4.4% | — |
| MMLU-Pro | 67.3% | — |
| Confabulations | 30.1% | — |
| Vectara Hallucination Rate | 5.1% | — |
| GPQA (HELM) | 44.6% | — |
| MMLU | 82% | — |

## Multimodal

- Amazon Nova Pro: 25.0 (#126)
- Kimi K2.5 Instant: 40.2 (#50)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | 980 | 1254 |

## Multilingual

- Amazon Nova Pro: 39.7 (#223)
- Kimi K2.5 Instant: 52.0 (#94)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1234 | 1406 |
| LMArena Chinese | 1244 | 1449 |
| LMArena French | 1271 | 1403 |
| LMArena German | 1243 | 1413 |
| LMArena Korean | 1203 | 1378 |
| LMArena Russian | 1240 | 1404 |
| LMArena Spanish | 1182 | 1447 |
| LMArena Japanese | 1200 | — |

## Instruction Following

- Amazon Nova Pro: 64.9 (#226)
- Kimi K2.5 Instant: 75.3 (#65)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1235 | 1430 |
| LiveBench Instruction Following | 67.1% | — |
| IFEval | 81.5% | — |

## Long Context

- Amazon Nova Pro: 38.1 (#205)
- Kimi K2.5 Instant: 43.9 (#83)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1255 | 1435 |

## Writing & Preference

- Amazon Nova Pro: 43.9 (#226)
- Kimi K2.5 Instant: 60.6 (#95)

| Benchmark | Amazon Nova Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1259 | 1420 |
| LMArena Creative Writing | 1212 | 1381 |
| LMArena Multi-Turn | 1246 | 1427 |
| Short-Story Creative Writing | 60.5% | — |
| WildBench | 77.7% | — |
| LiveBench Language | 37% | — |

## FAQ

### Is Amazon Nova Pro better than Kimi K2.5 Instant?

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 31.0 on the Noometry Index.

### Is Amazon Nova Pro or Kimi K2.5 Instant better for coding?

Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 35.1 in the Noometry coding category.

### How many benchmarks do Amazon Nova Pro and Kimi K2.5 Instant share?

17 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and Kimi K2.5 Instant has 18.