# Amazon Nova Micro vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 47.9 to 30.4 on the Noometry Index. Amazon Nova Micro costs 23× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/amazon-nova-micro-vs-step-5-preview
- Last updated: 2026-10-11
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Amazon Nova Micro scores higher in 0 categories and Step 5 Preview in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 5 Preview leads 62.8 to 39.5.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $1 / $2.70 for Step 5 Preview.
- Step 5 Preview accepts more context: 1.02M tokens versus 128K.

## Snapshot

| | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 30.4 | 47.9 |
| Rank | 294 | 58 |
| Context | 128K | 1.02M |
| Input $/M | $0.035 | $1 |
| Output $/M | $0.14 | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Micro: 30.5 (#295)
- Step 5 Preview: 51.8 (#36)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Coding | 1218 | 1480 |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
| LiveBench Coding | 20.2% | — |

## Agentic & Tool Use

- Amazon Nova Micro: 22.1 (#132)
- Step 5 Preview: —

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| Berkeley Function Calling Leaderboard | 22.3% | — |

## Reasoning

- Amazon Nova Micro: 17.4 (#294)
- Step 5 Preview: 40.0 (#57)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Hard Prompts | 1191 | 1465 |
| CritPt | — | 20.9% |
| LiveBench Reasoning | 25.1% | — |
| LiveBench Data Analysis | 34% | — |
| LiveBench | 29.6% | — |

## Math

- Amazon Nova Micro: 26.9 (#254)
- Step 5 Preview: 46.1 (#72)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Math | 1206 | 1470 |
| ProofBench | — | 42% |
| Omni-MATH | 21.4% | — |
| LiveBench Math | 34.5% | — |

## Knowledge

- Amazon Nova Micro: 29.6 (#237)
- Step 5 Preview: 41.2 (#112)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1184 | 1470 |
| MMLU-Pro | 51.1% | — |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | 38.3% | — |
| MMLU | 70.8% | — |

## Multimodal

- Amazon Nova Micro: —
- Step 5 Preview: 41.0 (#41)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |

## Multilingual

- Amazon Nova Micro: 36.5 (#239)
- Step 5 Preview: 53.8 (#54)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1186 | 1432 |
| LMArena Chinese | 1209 | 1519 |
| LMArena Russian | 1185 | 1436 |
| LMArena Spanish | 1225 | 1439 |
| LMArena French | 1238 | — |
| LMArena German | 1192 | — |
| LMArena Japanese | 1154 | — |
| LMArena Korean | 1150 | — |

## Instruction Following

- Amazon Nova Micro: 56.3 (#272)
- Step 5 Preview: 76.0 (#50)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1174 | 1444 |
| LiveBench Instruction Following | 48% | — |
| IFEval | 76% | — |

## Long Context

- Amazon Nova Micro: 36.5 (#229)
- Step 5 Preview: 44.5 (#64)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1205 | 1455 |

## Writing & Preference

- Amazon Nova Micro: 39.5 (#247)
- Step 5 Preview: 62.8 (#71)

| Benchmark | Amazon Nova Micro | Step 5 Preview |
|---|---|---|
| LMArena Text | 1208 | 1442 |
| LMArena Creative Writing | 1172 | 1410 |
| LMArena Multi-Turn | 1178 | 1447 |
| WildBench | 74.3% | — |
| LiveBench Language | 15.8% | — |

## FAQ

### Is Amazon Nova Micro better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 47.9 to 30.4 on the Noometry Index. Amazon Nova Micro costs 23× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

### Which is cheaper, Amazon Nova Micro or Step 5 Preview?

Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Step 5 Preview lists at $1 and $2.70.

### Is Amazon Nova Micro or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 51.8 versus 30.5 in the Noometry coding category.

### Which has the bigger context window?

Step 5 Preview does, with 1.02M tokens against 128K.

### How many benchmarks do Amazon Nova Micro and Step 5 Preview share?

13 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Step 5 Preview has 18.