# Gemma 2 9B vs GPT-4o

> GPT-4o is the stronger model overall, scoring 28.6 to 25.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-2-9b-vs-gpt-4o
- Last updated: 2026-10-12
- Shared benchmarks: 31

## Summary

- They share 31 benchmarks with published results for both. Gemma 2 9B scores higher in 2 categories and GPT-4o in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-4o leads 52.6 to 32.1.
- The biggest single-benchmark swing is LiveBench Reasoning: 15.2% for Gemma 2 9B and 55.8% for GPT-4o.
- Gemma 2 9B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 2 9B | GPT-4o |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 25.9 | 28.6 |
| Rank | 341 | 324 |
| Context | — | 128K |
| Input $/M | — | $2.50 |
| Output $/M | — | $10 |
| Weights | Open | Proprietary |

## Coding

- Gemma 2 9B: 29.4 (#304)
- GPT-4o: 24.8 (#328)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| BigCodeBench Instruct | 34.7% | 51.1% |
| LiveBench Coding | 22.5% | 51.4% |
| LMArena Coding | 1173 | 1297 |
| BigCodeBench Complete | 40.6% | 61.1% |
| SWE-bench Verified | — | 31% |
| SWE-bench Verified (bash only) | — | 21.6% |
| Aider Polyglot | — | 45.3% |
| GSO | — | 0% |
| WeirdML | — | 25.1% |
| CadEval | — | 26% |
| HumanEval+ | — | 87.2% |
| MBPP+ | — | 72.2% |

## Agentic & Tool Use

- Gemma 2 9B: —
- GPT-4o: 21.0 (#141)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| GDPval | — | 9.9% |
| TheAgentCompany | — | 8.6% |
| Cybench | — | 12.5% |
| BALROG | — | 32.3% |
| LMArena Search | — | 1006 |
| METR Time Horizons | — | 40.8% |

## Reasoning

- Gemma 2 9B: 15.9 (#309)
- GPT-4o: 9.4 (#343)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LiveBench Reasoning | 15.2% | 55.8% |
| LMArena Hard Prompts | 1171 | 1281 |
| LiveBench Data Analysis | 36.4% | 60.9% |
| Epoch Capabilities Index | 119.83 | 128.97 |
| LiveBench | 28.7% | 55.3% |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 17.8% |
| ARC-AGI-1 | — | 4.5% |
| CritPt | — | 0% |
| Chess Puzzles | — | 13% |
| EnigmaEval | — | 0.8% |
| DTBench | — | 64.5% |
| LMCA | — | 16.6% |
| ForecastBench | — | 57.7 |
| PIQA | 83.7% | — |

## Math

- Gemma 2 9B: 9.9 (#318)
- GPT-4o: 10.6 (#312)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 0.6% | 6.4% |
| LiveBench Math | 19.8% | 49.5% |
| LMArena Math | 1183 | 1285 |
| MATH Level 5 | 21% | 53.3% |
| FrontierMath (Tiers 1-3) | — | 0.4% |
| Omni-MATH | — | 29.3% |
| FrontierMath (Feb 2025 set) | — | 0.3% |
| GSM8K | 84.9% | — |

## Knowledge

- Gemma 2 9B: 9.7 (#305)
- GPT-4o: 28.8 (#242)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| GPQA Diamond | 27.5% | 49.2% |
| LMArena Expert | 1147 | 1250 |
| MMLU | 72.1% | 88.1% |
| Humanity's Last Exam | — | 2.7% |
| SimpleQA Verified | — | 26% |
| MMLU-Pro | — | 71.3% |
| Confabulations | — | 15.3% |
| Vectara Hallucination Rate | — | 9.6% |
| GPQA (HELM) | — | 52% |
| BoolQ | 85.7% | — |

## Multimodal

- Gemma 2 9B: —
- GPT-4o: 34.5 (#91)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LMArena Vision | — | 1137 |
| Video-MME | — | 71.9% |
| GeoBench | — | 71% |
| VPCT | — | 40% |
| ScienceQA | — | 88.5% |

## Multilingual

- Gemma 2 9B: 36.6 (#238)
- GPT-4o: 43.2 (#186)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LMArena Non-English | 1188 | 1283 |
| LMArena Chinese | 1185 | 1277 |
| LMArena French | 1190 | 1304 |
| LMArena German | 1186 | 1282 |
| LMArena Japanese | 1144 | 1257 |
| LMArena Korean | 1137 | 1234 |
| LMArena Russian | 1200 | 1286 |
| LMArena Spanish | 1200 | 1292 |

## Instruction Following

- Gemma 2 9B: 57.6 (#269)
- GPT-4o: 66.6 (#207)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LiveBench Instruction Following | 52.6% | 68.6% |
| LMArena Instruction Following | 1178 | 1278 |
| IFEval | — | 81.7% |

## Long Context

- Gemma 2 9B: 36.3 (#233)
- GPT-4o: 39.4 (#179)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LMArena Longer Query | 1197 | 1289 |
| Fiction.LiveBench | — | 66.7% |

## Writing & Preference

- Gemma 2 9B: 32.1 (#281)
- GPT-4o: 52.6 (#166)

| Benchmark | Gemma 2 9B | GPT-4o |
|---|---|---|
| LMArena Text | 1207 | 1300 |
| LMArena Creative Writing | 1206 | 1292 |
| LMArena Multi-Turn | 1193 | 1302 |
| LiveBench Language | 25.5% | 47.6% |
| Short-Story Creative Writing | — | 81.8% |
| EQ-Bench Creative Writing | 841 | — |
| WildBench | — | 82.8% |

## FAQ

### Is Gemma 2 9B better than GPT-4o?

GPT-4o is the stronger model overall, scoring 28.6 to 25.9 on the Noometry Index.

### Is Gemma 2 9B or GPT-4o better for coding?

Gemma 2 9B scores higher on coding benchmarks: 29.4 versus 24.8 in the Noometry coding category.

### How many benchmarks do Gemma 2 9B and GPT-4o share?

31 benchmarks have published results for both models. Gemma 2 9B has 35 scored results on Noometry and GPT-4o has 72.