# Gemma 2 9B vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 25.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-2-9b-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Gemma 2 9B 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 36.3.
- Gemma 2 9B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 2 9B | o3-pro |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 25.9 | 42.9 |
| Rank | 341 | 105 |
| Context | — | 200K |
| Input $/M | — | $20 |
| Output $/M | — | $80 |
| Weights | Open | Proprietary |

## Coding

- Gemma 2 9B: 29.4 (#304)
- o3-pro: 55.5 (#24)

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| BigCodeBench Instruct | 34.7% | — |
| LiveBench Coding | 22.5% | — |
| LMArena Coding | 1173 | — |
| BigCodeBench Complete | 40.6% | — |

## Reasoning

- Gemma 2 9B: 15.9 (#309)
- o3-pro: 23.8 (#171)

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| Epoch Capabilities Index | 119.83 | 147.42 |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LiveBench Reasoning | 15.2% | — |
| LMArena Hard Prompts | 1171 | — |
| DTBench | — | 86.9% |
| LiveBench Data Analysis | 36.4% | — |
| LMCA | — | 38.5% |
| LiveBench | 28.7% | — |
| PIQA | 83.7% | — |

## Math

- Gemma 2 9B: 9.9 (#318)
- o3-pro: —

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 0.6% | — |
| LiveBench Math | 19.8% | — |
| LMArena Math | 1183 | — |
| MATH Level 5 | 21% | — |
| GSM8K | 84.9% | — |

## Knowledge

- Gemma 2 9B: 9.7 (#305)
- o3-pro: 29.5 (#238)

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| GPQA Diamond | 27.5% | — |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1147 | — |
| BoolQ | 85.7% | — |
| MMLU | 72.1% | — |

## Multilingual

- Gemma 2 9B: 36.6 (#238)
- o3-pro: —

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| LMArena Non-English | 1188 | — |
| LMArena Chinese | 1185 | — |
| LMArena French | 1190 | — |
| LMArena German | 1186 | — |
| LMArena Japanese | 1144 | — |
| LMArena Korean | 1137 | — |
| LMArena Russian | 1200 | — |
| LMArena Spanish | 1200 | — |

## Instruction Following

- Gemma 2 9B: 57.6 (#269)
- o3-pro: —

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| LiveBench Instruction Following | 52.6% | — |
| LMArena Instruction Following | 1178 | — |

## Long Context

- Gemma 2 9B: 36.3 (#233)
- o3-pro: 72.2 (#1)

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1197 | — |

## Writing & Preference

- Gemma 2 9B: 32.1 (#281)
- o3-pro: 57.1 (#133)

| Benchmark | Gemma 2 9B | o3-pro |
|---|---|---|
| LMArena Text | 1207 | — |
| LMArena Creative Writing | 1206 | — |
| Short-Story Creative Writing | — | 84.4% |
| EQ-Bench Creative Writing | 841 | — |
| LMArena Multi-Turn | 1193 | — |
| LiveBench Language | 25.5% | — |

## FAQ

### Is Gemma 2 9B better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 25.9 on the Noometry Index.

### Is Gemma 2 9B or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 29.4 in the Noometry coding category.

### How many benchmarks do Gemma 2 9B and o3-pro share?

1 benchmark has published results for both models. Gemma 2 9B has 35 scored results on Noometry and o3-pro has 12.