# Amazon Nova Pro vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 31.0 on the Noometry Index. Amazon Nova Pro costs 25× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/amazon-nova-pro-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. Amazon Nova Pro scores higher in 0 categories and o3-pro in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 38.1.
- The biggest single-benchmark swing is Short-Story Creative Writing: 60.5% for Amazon Nova Pro and 84.4% for o3-pro.
- Amazon Nova Pro is cheaper at $0.80 / $3.20 per million input/output tokens, against $20 / $80 for o3-pro.
- Amazon Nova Pro accepts more context: 300K tokens versus 200K.

## Snapshot

| | Amazon Nova Pro | o3-pro |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 31.0 | 42.9 |
| Rank | 281 | 105 |
| Context | 300K | 200K |
| Input $/M | $0.80 | $20 |
| Output $/M | $3.20 | $80 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Pro: 35.1 (#229)
- o3-pro: 55.5 (#24)

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LiveBench Coding | 38.1% | — |
| LMArena Coding | 1270 | — |

## Agentic & Tool Use

- Amazon Nova Pro: 16.7 (#147)
- o3-pro: —

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Berkeley Function Calling Leaderboard | 25% | — |
| TheAgentCompany | 1.7% | — |

## Reasoning

- Amazon Nova Pro: 20.0 (#243)
- o3-pro: 23.8 (#171)

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Epoch Capabilities Index | 123.8 | 147.42 |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LiveBench Reasoning | 32.6% | — |
| LMArena Hard Prompts | 1246 | — |
| DTBench | — | 86.9% |
| LiveBench Data Analysis | 48.3% | — |
| LMCA | — | 38.5% |
| LiveBench | 43.5% | — |

## Math

- Amazon Nova Pro: 28.5 (#243)
- o3-pro: —

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Omni-MATH | 24.2% | — |
| LiveBench Math | 38% | — |
| LMArena Math | 1252 | — |

## Knowledge

- Amazon Nova Pro: 27.4 (#250)
- o3-pro: 29.5 (#238)

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Confabulations | 30.1% | 14.2% |
| Vectara Hallucination Rate | 5.1% | 23.3% |
| Humanity's Last Exam | 4.4% | — |
| MMLU-Pro | 67.3% | — |
| GPQA (HELM) | 44.6% | — |
| LMArena Expert | 1211 | — |
| MMLU | 82% | — |

## Multimodal

- Amazon Nova Pro: 25.0 (#126)
- o3-pro: —

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| LMArena Vision | 980 | — |

## Multilingual

- Amazon Nova Pro: 39.7 (#223)
- o3-pro: —

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| LMArena Non-English | 1234 | — |
| LMArena Chinese | 1244 | — |
| LMArena French | 1271 | — |
| LMArena German | 1243 | — |
| LMArena Japanese | 1200 | — |
| LMArena Korean | 1203 | — |
| LMArena Russian | 1240 | — |
| LMArena Spanish | 1182 | — |

## Instruction Following

- Amazon Nova Pro: 64.9 (#226)
- o3-pro: —

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| LiveBench Instruction Following | 67.1% | — |
| IFEval | 81.5% | — |
| LMArena Instruction Following | 1235 | — |

## Long Context

- Amazon Nova Pro: 38.1 (#205)
- o3-pro: 72.2 (#1)

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1255 | — |

## Writing & Preference

- Amazon Nova Pro: 43.9 (#226)
- o3-pro: 57.1 (#133)

| Benchmark | Amazon Nova Pro | o3-pro |
|---|---|---|
| Short-Story Creative Writing | 60.5% | 84.4% |
| LMArena Text | 1259 | — |
| LMArena Creative Writing | 1212 | — |
| WildBench | 77.7% | — |
| LMArena Multi-Turn | 1246 | — |
| LiveBench Language | 37% | — |

## FAQ

### Is Amazon Nova Pro better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 31.0 on the Noometry Index. Amazon Nova Pro costs 25× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.

### Which is cheaper, Amazon Nova Pro or o3-pro?

Amazon Nova Pro is cheaper. It lists at $0.80 per million input tokens and $3.20 per million output tokens; o3-pro lists at $20 and $80.

### Is Amazon Nova Pro or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 35.1 in the Noometry coding category.

### Which has the bigger context window?

Amazon Nova Pro does, with 300K tokens against 200K.

### How many benchmarks do Amazon Nova Pro and o3-pro share?

4 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and o3-pro has 12.