# Amazon Nova Pro vs Solar Pro4

> Solar Pro4 is the stronger model overall, scoring 42.1 to 31.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-pro-vs-solar-pro4
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Pro scores higher in 0 categories and Solar Pro4 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Solar Pro4 leads 56.5 to 43.9.
- Solar Pro4 is cheaper at $0.30 / $1.20 per million input/output tokens, against $0.80 / $3.20 for Amazon Nova Pro.
- Solar Pro4 accepts more context: 524K tokens versus 300K.

## Snapshot

| | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| Provider | Amazon | Upstage |
| Noometry Index | 31.0 | 42.1 |
| Rank | 281 | 121 |
| Context | 300K | 524K |
| Input $/M | $0.80 | $0.30 |
| Output $/M | $3.20 | $1.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Pro: 35.1 (#229)
- Solar Pro4: 40.1 (#149)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1270 | 1437 |
| LMArena WebDev | — | 1371 |
| LiveBench Coding | 38.1% | — |

## Agentic & Tool Use

- Amazon Nova Pro: 16.7 (#147)
- Solar Pro4: —

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 25% | — |
| TheAgentCompany | 1.7% | — |

## Reasoning

- Amazon Nova Pro: 20.0 (#243)
- Solar Pro4: 28.5 (#104)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1246 | 1399 |
| LiveBench Reasoning | 32.6% | — |
| LiveBench Data Analysis | 48.3% | — |
| Epoch Capabilities Index | 123.8 | — |
| LiveBench | 43.5% | — |

## Math

- Amazon Nova Pro: 28.5 (#243)
- Solar Pro4: 38.8 (#128)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Math | 1252 | 1416 |
| Omni-MATH | 24.2% | — |
| LiveBench Math | 38% | — |

## Knowledge

- Amazon Nova Pro: 27.4 (#250)
- Solar Pro4: 39.8 (#129)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1211 | 1427 |
| 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)
- Solar Pro4: —

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Vision | 980 | — |

## Multilingual

- Amazon Nova Pro: 39.7 (#223)
- Solar Pro4: 48.7 (#139)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1234 | 1361 |
| LMArena Chinese | 1244 | 1415 |
| LMArena French | 1271 | 1397 |
| LMArena German | 1243 | 1364 |
| LMArena Japanese | 1200 | 1309 |
| LMArena Korean | 1203 | 1382 |
| LMArena Russian | 1240 | 1360 |
| LMArena Spanish | 1182 | 1401 |

## Instruction Following

- Amazon Nova Pro: 64.9 (#226)
- Solar Pro4: 72.7 (#132)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1235 | 1377 |
| LiveBench Instruction Following | 67.1% | — |
| IFEval | 81.5% | — |

## Long Context

- Amazon Nova Pro: 38.1 (#205)
- Solar Pro4: 42.1 (#130)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1255 | 1381 |

## Writing & Preference

- Amazon Nova Pro: 43.9 (#226)
- Solar Pro4: 56.5 (#138)

| Benchmark | Amazon Nova Pro | Solar Pro4 |
|---|---|---|
| LMArena Text | 1259 | 1386 |
| LMArena Creative Writing | 1212 | 1316 |
| LMArena Multi-Turn | 1246 | 1385 |
| Short-Story Creative Writing | 60.5% | — |
| WildBench | 77.7% | — |
| LiveBench Language | 37% | — |

## FAQ

### Is Amazon Nova Pro better than Solar Pro4?

Solar Pro4 is the stronger model overall, scoring 42.1 to 31.0 on the Noometry Index.

### Which is cheaper, Amazon Nova Pro or Solar Pro4?

Solar Pro4 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; Amazon Nova Pro lists at $0.80 and $3.20.

### Is Amazon Nova Pro or Solar Pro4 better for coding?

Solar Pro4 scores higher on coding benchmarks: 40.1 versus 35.1 in the Noometry coding category.

### Which has the bigger context window?

Solar Pro4 does, with 524K tokens against 300K.

### How many benchmarks do Amazon Nova Pro and Solar Pro4 share?

17 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and Solar Pro4 has 18.