# Amazon Nova Micro vs Solar Pro4

> Solar Pro4 is the stronger model overall, scoring 42.1 to 30.4 on the Noometry Index. Amazon Nova Micro costs 8.6× less per token, which makes it the better buy when Solar Pro4's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/amazon-nova-micro-vs-solar-pro4
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Micro 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 39.5.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $0.30 / $1.20 for Solar Pro4.
- Solar Pro4 accepts more context: 524K tokens versus 128K.

## Snapshot

| | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| Provider | Amazon | Upstage |
| Noometry Index | 30.4 | 42.1 |
| Rank | 294 | 121 |
| Context | 128K | 524K |
| Input $/M | $0.035 | $0.30 |
| Output $/M | $0.14 | $1.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Micro: 30.5 (#295)
- Solar Pro4: 40.1 (#149)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1218 | 1437 |
| LMArena WebDev | — | 1371 |
| LiveBench Coding | 20.2% | — |

## Agentic & Tool Use

- Amazon Nova Micro: 22.1 (#132)
- Solar Pro4: —

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 22.3% | — |

## Reasoning

- Amazon Nova Micro: 17.4 (#294)
- Solar Pro4: 28.5 (#104)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1191 | 1399 |
| LiveBench Reasoning | 25.1% | — |
| LiveBench Data Analysis | 34% | — |
| LiveBench | 29.6% | — |

## Math

- Amazon Nova Micro: 26.9 (#254)
- Solar Pro4: 38.8 (#128)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Math | 1206 | 1416 |
| Omni-MATH | 21.4% | — |
| LiveBench Math | 34.5% | — |

## Knowledge

- Amazon Nova Micro: 29.6 (#237)
- Solar Pro4: 39.8 (#129)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1184 | 1427 |
| MMLU-Pro | 51.1% | — |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | 38.3% | — |
| MMLU | 70.8% | — |

## Multilingual

- Amazon Nova Micro: 36.5 (#239)
- Solar Pro4: 48.7 (#139)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1186 | 1361 |
| LMArena Chinese | 1209 | 1415 |
| LMArena French | 1238 | 1397 |
| LMArena German | 1192 | 1364 |
| LMArena Japanese | 1154 | 1309 |
| LMArena Korean | 1150 | 1382 |
| LMArena Russian | 1185 | 1360 |
| LMArena Spanish | 1225 | 1401 |

## Instruction Following

- Amazon Nova Micro: 56.3 (#272)
- Solar Pro4: 72.7 (#132)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1174 | 1377 |
| LiveBench Instruction Following | 48% | — |
| IFEval | 76% | — |

## Long Context

- Amazon Nova Micro: 36.5 (#229)
- Solar Pro4: 42.1 (#130)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1205 | 1381 |

## Writing & Preference

- Amazon Nova Micro: 39.5 (#247)
- Solar Pro4: 56.5 (#138)

| Benchmark | Amazon Nova Micro | Solar Pro4 |
|---|---|---|
| LMArena Text | 1208 | 1386 |
| LMArena Creative Writing | 1172 | 1316 |
| LMArena Multi-Turn | 1178 | 1385 |
| WildBench | 74.3% | — |
| LiveBench Language | 15.8% | — |

## FAQ

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

Solar Pro4 is the stronger model overall, scoring 42.1 to 30.4 on the Noometry Index. Amazon Nova Micro costs 8.6× less per token, which makes it the better buy when Solar Pro4's lead doesn't matter for your workload.

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

Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Solar Pro4 lists at $0.30 and $1.20.

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

Solar Pro4 scores higher on coding benchmarks: 40.1 versus 30.5 in the Noometry coding category.

### Which has the bigger context window?

Solar Pro4 does, with 524K tokens against 128K.

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

17 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Solar Pro4 has 18.