# Amazon Nova Micro vs Claude Opus 4.1

> Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 30.4 on the Noometry Index. Amazon Nova Micro costs 490× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/amazon-nova-micro-vs-claude-opus-4-1
- Last updated: 2026-10-11
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Amazon Nova Micro scores higher in 1 category and Claude Opus 4.1 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Opus 4.1 leads 62.4 to 39.5.
- The biggest single-benchmark swing is Vectara Hallucination Rate: 5.5% for Amazon Nova Micro and 11.8% for Claude Opus 4.1.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $15 / $75 for Claude Opus 4.1.
- Claude Opus 4.1 accepts more context: 200K tokens versus 128K.

## Snapshot

| | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| Provider | Amazon | Anthropic |
| Noometry Index | 30.4 | 41.0 |
| Rank | 294 | 142 |
| Context | 128K | 200K |
| Input $/M | $0.035 | $15 |
| Output $/M | $0.14 | $75 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Micro: 30.5 (#295)
- Claude Opus 4.1: 44.4 (#73)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Coding | 1218 | 1479 |
| SWE-bench Verified | — | 73.3% |
| LMArena WebDev | — | 1390 |
| WeirdML | — | 45.9% |
| LiveBench Coding | 20.2% | — |
| ALE-Bench | — | 674.77 |
| AlgoTune | — | 1.34 |

## Agentic & Tool Use

- Amazon Nova Micro: 22.1 (#132)
- Claude Opus 4.1: 35.0 (#41)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| Terminal-Bench | — | 38% |
| Berkeley Function Calling Leaderboard | 22.3% | — |
| GDPval | — | 43.6% |
| Cybench | — | 42% |
| DeepResearch Bench | — | 48.3% |
| LMArena Search | — | 1148 |
| METR Time Horizons | — | 66.8% |

## Reasoning

- Amazon Nova Micro: 17.4 (#294)
- Claude Opus 4.1: 32.2 (#76)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Hard Prompts | 1191 | 1443 |
| SimpleBench | — | 60% |
| Chess Puzzles | — | 7% |
| EnigmaEval | — | 7.2% |
| EBR-Bench | — | 7.9% |
| LiveBench Reasoning | 25.1% | — |
| Mystery Game Puzzles | — | 21% |
| DTBench | — | 80% |
| LiveBench Data Analysis | 34% | — |
| LMCA | — | 37.1% |
| Epoch Capabilities Index | — | 144.12 |
| ForecastBench | — | 62 |
| LiveBench | 29.6% | — |

## Math

- Amazon Nova Micro: 26.9 (#254)
- Claude Opus 4.1: 22.3 (#277)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Math | 1206 | 1431 |
| FrontierMath (Tiers 1-3) | — | 12.6% |
| FrontierMath Tier 4 | — | 2.4% |
| OTIS Mock AIME 2024-2025 | — | 68.9% |
| Omni-MATH | 21.4% | — |
| LiveBench Math | 34.5% | — |
| FrontierMath (Feb 2025 set) | — | 7.2% |
| FrontierMath Tier 4 (v1) | — | 4.2% |

## Knowledge

- Amazon Nova Micro: 29.6 (#237)
- Claude Opus 4.1: 42.0 (#101)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| Vectara Hallucination Rate | 5.5% | 11.8% |
| LMArena Expert | 1184 | 1439 |
| GPQA Diamond | — | 77.3% |
| Humanity's Last Exam | — | 11.5% |
| MMLU-Pro | 51.1% | — |
| Confabulations | — | 17.1% |
| GPQA (HELM) | 38.3% | — |
| MMLU | 70.8% | — |

## Multimodal

- Amazon Nova Micro: —
- Claude Opus 4.1: 26.8 (#119)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| VPCT | — | 35% |

## Multilingual

- Amazon Nova Micro: 36.5 (#239)
- Claude Opus 4.1: 52.0 (#95)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Non-English | 1186 | 1405 |
| LMArena Chinese | 1209 | 1427 |
| LMArena French | 1238 | 1431 |
| LMArena German | 1192 | 1413 |
| LMArena Japanese | 1154 | 1378 |
| LMArena Korean | 1150 | 1380 |
| LMArena Russian | 1185 | 1422 |
| LMArena Spanish | 1225 | 1448 |

## Instruction Following

- Amazon Nova Micro: 56.3 (#272)
- Claude Opus 4.1: 75.6 (#58)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Instruction Following | 1174 | 1435 |
| LiveBench Instruction Following | 48% | — |
| IFEval | 76% | — |

## Long Context

- Amazon Nova Micro: 36.5 (#229)
- Claude Opus 4.1: 44.5 (#63)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Longer Query | 1205 | 1455 |

## Writing & Preference

- Amazon Nova Micro: 39.5 (#247)
- Claude Opus 4.1: 62.4 (#74)

| Benchmark | Amazon Nova Micro | Claude Opus 4.1 |
|---|---|---|
| LMArena Text | 1208 | 1419 |
| LMArena Creative Writing | 1172 | 1412 |
| LMArena Multi-Turn | 1178 | 1444 |
| Short-Story Creative Writing | — | 84.7% |
| WildBench | 74.3% | — |
| LiveBench Language | 15.8% | — |

## FAQ

### Is Amazon Nova Micro better than Claude Opus 4.1?

Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 30.4 on the Noometry Index. Amazon Nova Micro costs 490× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.

### Which is cheaper, Amazon Nova Micro or Claude Opus 4.1?

Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Claude Opus 4.1 lists at $15 and $75.

### Is Amazon Nova Micro or Claude Opus 4.1 better for coding?

Claude Opus 4.1 scores higher on coding benchmarks: 44.4 versus 30.5 in the Noometry coding category.

### Which has the bigger context window?

Claude Opus 4.1 does, with 200K tokens against 128K.

### How many benchmarks do Amazon Nova Micro and Claude Opus 4.1 share?

18 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Claude Opus 4.1 has 48.