# Gemma 2B vs GPT-6 Luna

> GPT-6 Luna is the stronger model overall, scoring 45.1 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-2b-vs-gpt-6-luna
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Gemma 2B scores higher in 0 categories and GPT-6 Luna in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-6 Luna leads 58.4 to 24.1.
- Gemma 2B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 2B | GPT-6 Luna |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 29.1 | 45.1 |
| Rank | 305 | 65 |
| Context | — | 1.05M |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.50 |
| Weights | Open | Proprietary |

## Coding

- Gemma 2B: 28.9 (#300)
- GPT-6 Luna: 54.7 (#24)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Coding | 1010 | 1448 |
| DeepSWE | — | 66.6% |
| FrontierCode | — | 42.4% |
| LMArena WebDev | — | 1583 |
| HumanEval+ | 20.7% | — |
| MBPP+ | 34.1% | — |

## Reasoning

- Gemma 2B: 17.9 (#275)
- GPT-6 Luna: 31.7 (#68)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Hard Prompts | 989 | 1415 |
| NYT Connections (extended) | — | 68.7% |
| BIG-Bench Hard | 35.2% | — |
| Epoch Capabilities Index | 93.57 | — |
| HellaSwag | 71.4% | — |
| PIQA | 77.3% | — |
| WinoGrande | 65.4% | — |

## Math

- Gemma 2B: 27.6 (#237)
- GPT-6 Luna: 35.6 (#140)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Math | 1009 | 1396 |
| GSM8K | 17.7% | — |

## Knowledge

- Gemma 2B: —
- GPT-6 Luna: 40.1 (#110)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Expert | — | 1458 |
| ARC (AI2) Challenge | 42.1% | — |
| BoolQ | 69.4% | — |
| MMLU | 42.3% | — |
| TriviaQA | 53.2% | — |

## Multimodal

- Gemma 2B: —
- GPT-6 Luna: 42.0 (#27)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| Furniture Assembly | — | 44.2% |

## Multilingual

- Gemma 2B: 23.1 (#289)
- GPT-6 Luna: 51.0 (#111)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Non-English | 958 | 1390 |
| LMArena Chinese | 986 | 1425 |
| LMArena Russian | 937 | 1392 |
| LMArena Spanish | — | 1416 |

## Instruction Following

- Gemma 2B: 48.8 (#297)
- GPT-6 Luna: 74.7 (#85)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Instruction Following | 971 | 1414 |

## Long Context

- Gemma 2B: 29.9 (#286)
- GPT-6 Luna: 43.3 (#95)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Longer Query | 981 | 1417 |

## Writing & Preference

- Gemma 2B: 24.1 (#303)
- GPT-6 Luna: 58.4 (#115)

| Benchmark | Gemma 2B | GPT-6 Luna |
|---|---|---|
| LMArena Text | 1002 | 1392 |
| LMArena Creative Writing | 986 | 1357 |
| LMArena Multi-Turn | 945 | 1400 |

## FAQ

### Is Gemma 2B better than GPT-6 Luna?

GPT-6 Luna is the stronger model overall, scoring 45.1 to 29.1 on the Noometry Index.

### Is Gemma 2B or GPT-6 Luna better for coding?

GPT-6 Luna scores higher on coding benchmarks: 54.7 versus 28.9 in the Noometry coding category.

### How many benchmarks do Gemma 2B and GPT-6 Luna share?

11 benchmarks have published results for both models. Gemma 2B has 23 scored results on Noometry and GPT-6 Luna has 18.