# Amazon Nova Micro vs Mercury 2.5

> Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-micro-vs-mercury-2-5
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Mercury 2.5 leads 39.5 to 30.5.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $0.04 / $0.15 for Mercury 2.5.
- Mercury 2.5 accepts more context: 260K tokens versus 128K.

## Snapshot

| | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| Provider | Amazon | Inception |
| Noometry Index | 30.4 | 33.5 |
| Rank | 294 | 242 |
| Context | 128K | 260K |
| Input $/M | $0.035 | $0.04 |
| Output $/M | $0.14 | $0.15 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Micro: 30.5 (#295)
- Mercury 2.5: 39.5 (#156)

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| LiveBench Coding | 20.2% | — |
| LMArena Coding | 1218 | — |
| ALE-Bench | — | 301.65 |

## Agentic & Tool Use

- Amazon Nova Micro: 22.1 (#132)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 22.3% | — |

## Reasoning

- Amazon Nova Micro: 17.4 (#294)
- Mercury 2.5: 22.4 (#193)

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| CritPt | — | 0% |
| LiveBench Reasoning | 25.1% | — |
| LMArena Hard Prompts | 1191 | — |
| LiveBench Data Analysis | 34% | — |
| LiveBench | 29.6% | — |

## Math

- Amazon Nova Micro: 26.9 (#254)
- Mercury 2.5: 23.3 (#272)

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| Omni-MATH | 21.4% | — |
| LiveBench Math | 34.5% | — |
| LMArena Math | 1206 | — |

## Knowledge

- Amazon Nova Micro: 29.6 (#237)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| MMLU-Pro | 51.1% | — |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | 38.3% | — |
| LMArena Expert | 1184 | — |
| MMLU | 70.8% | — |

## Multilingual

- Amazon Nova Micro: 36.5 (#239)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1186 | — |
| LMArena Chinese | 1209 | — |
| LMArena French | 1238 | — |
| LMArena German | 1192 | — |
| LMArena Japanese | 1154 | — |
| LMArena Korean | 1150 | — |
| LMArena Russian | 1185 | — |
| LMArena Spanish | 1225 | — |

## Instruction Following

- Amazon Nova Micro: 56.3 (#272)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LiveBench Instruction Following | 48% | — |
| IFEval | 76% | — |
| LMArena Instruction Following | 1174 | — |

## Long Context

- Amazon Nova Micro: 36.5 (#229)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1205 | — |

## Writing & Preference

- Amazon Nova Micro: 39.5 (#247)
- Mercury 2.5: —

| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1208 | — |
| LMArena Creative Writing | 1172 | — |
| WildBench | 74.3% | — |
| LMArena Multi-Turn | 1178 | — |
| LiveBench Language | 15.8% | — |

## FAQ

### Is Amazon Nova Micro better than Mercury 2.5?

Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.4 on the Noometry Index.

### Which is cheaper, Amazon Nova Micro or Mercury 2.5?

Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Mercury 2.5 lists at $0.04 and $0.15.

### Is Amazon Nova Micro or Mercury 2.5 better for coding?

Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 30.5 in the Noometry coding category.

### Which has the bigger context window?

Mercury 2.5 does, with 260K tokens against 128K.

### How many benchmarks do Amazon Nova Micro and Mercury 2.5 share?

0 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Mercury 2.5 has 4.