# Gemma 7B vs GPT-5.1-Codex

> GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 30.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-7b-vs-gpt-5-1-codex
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-5.1-Codex leads 41.9 to 30.5.
- Gemma 7B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 30.0 | 38.6 |
| Rank | 299 | 186 |
| Context | — | 400K |
| Input $/M | — | $1.25 |
| Output $/M | — | $10 |
| Weights | Open | Proprietary |

## Coding

- Gemma 7B: 30.5 (#294)
- GPT-5.1-Codex: 41.9 (#116)

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| SWE-bench Verified (bash only) | — | 66% |
| LMArena WebDev | — | 1337 |
| LMArena Coding | 1048 | — |
| ALE-Bench | — | 1,245 |
| HumanEval+ | 28.7% | — |
| MBPP+ | 43.4% | — |

## Agentic & Tool Use

- Gemma 7B: —
- GPT-5.1-Codex: 38.0 (#33)

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| Terminal-Bench | — | 60.4% |
| METR Time Horizons | — | 70.8% |

## Reasoning

- Gemma 7B: 19.9 (#249)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Hard Prompts | 1042 | — |
| Adversarial NLI | 48.7% | — |
| BIG-Bench Hard | 55.1% | — |
| Epoch Capabilities Index | 111.99 | — |
| HellaSwag | 82.2% | — |
| PIQA | 81.2% | — |
| WinoGrande | 79% | — |

## Math

- Gemma 7B: 31.2 (#228)
- GPT-5.1-Codex: 30.3 (#235)

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| ProofBench | — | 9% |
| LMArena Math | 1066 | — |
| GSM8K | 46.4% | — |

## Knowledge

- Gemma 7B: 27.3 (#252)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Expert | 1001 | — |
| ARC (AI2) Challenge | 78.3% | — |
| BoolQ | 83.2% | — |
| MMLU | 66.1% | — |
| OpenBookQA | 78.6% | — |
| TriviaQA | 72.3% | — |

## Multilingual

- Gemma 7B: 25.1 (#287)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Non-English | 999 | — |
| LMArena Chinese | 1035 | — |
| LMArena French | 1025 | — |
| LMArena Russian | 993 | — |

## Instruction Following

- Gemma 7B: 51.5 (#295)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Instruction Following | 1017 | — |

## Long Context

- Gemma 7B: 31.1 (#282)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Longer Query | 1022 | — |

## Writing & Preference

- Gemma 7B: 27.1 (#302)
- GPT-5.1-Codex: —

| Benchmark | Gemma 7B | GPT-5.1-Codex |
|---|---|---|
| LMArena Text | 1056 | — |
| LMArena Creative Writing | 1024 | — |
| LMArena Multi-Turn | 963 | — |

## FAQ

### Is Gemma 7B better than GPT-5.1-Codex?

GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 30.0 on the Noometry Index.

### Is Gemma 7B or GPT-5.1-Codex better for coding?

GPT-5.1-Codex scores higher on coding benchmarks: 41.9 versus 30.5 in the Noometry coding category.

### How many benchmarks do Gemma 7B and GPT-5.1-Codex share?

0 benchmarks have published results for both models. Gemma 7B has 27 scored results on Noometry and GPT-5.1-Codex has 6.