# Gemma 2B vs GPT-5.5 Pro

> GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-2b-vs-gpt-5-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Gemma 2B scores higher in 0 categories and GPT-5.5 Pro in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.5 Pro leads 83.8 to 27.6.
- Gemma 2B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 29.1 | 64.3 |
| Rank | 305 | 7 |
| Context | — | 1.05M |
| Input $/M | — | $30 |
| Output $/M | — | $180 |
| Weights | Open | Proprietary |

## Coding

- Gemma 2B: 28.9 (#300)
- GPT-5.5 Pro: —

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1010 | — |
| HumanEval+ | 20.7% | — |
| MBPP+ | 34.1% | — |

## Reasoning

- Gemma 2B: 17.9 (#275)
- GPT-5.5 Pro: 73.6 (#7)

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| Epoch Capabilities Index | 93.57 | 162.45 |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| LMArena Hard Prompts | 989 | — |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| BIG-Bench Hard | 35.2% | — |
| HellaSwag | 71.4% | — |
| PIQA | 77.3% | — |
| WinoGrande | 65.4% | — |

## Math

- Gemma 2B: 27.6 (#237)
- GPT-5.5 Pro: 83.8 (#8)

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| LMArena Math | 1009 | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
| GSM8K | 17.7% | — |

## Knowledge

- Gemma 2B: —
- GPT-5.5 Pro: 64.2 (#17)

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| ARC (AI2) Challenge | 42.1% | — |
| BoolQ | 69.4% | — |
| MMLU | 42.3% | — |
| TriviaQA | 53.2% | — |

## Multilingual

- Gemma 2B: 23.1 (#289)
- GPT-5.5 Pro: —

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 958 | — |
| LMArena Chinese | 986 | — |
| LMArena Russian | 937 | — |

## Instruction Following

- Gemma 2B: 48.8 (#297)
- GPT-5.5 Pro: —

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 971 | — |

## Long Context

- Gemma 2B: 29.9 (#286)
- GPT-5.5 Pro: —

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 981 | — |

## Writing & Preference

- Gemma 2B: 24.1 (#303)
- GPT-5.5 Pro: —

| Benchmark | Gemma 2B | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1002 | — |
| LMArena Creative Writing | 986 | — |
| LMArena Multi-Turn | 945 | — |

## FAQ

### Is Gemma 2B better than GPT-5.5 Pro?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 29.1 on the Noometry Index.

### How many benchmarks do Gemma 2B and GPT-5.5 Pro share?

1 benchmark has published results for both models. Gemma 2B has 23 scored results on Noometry and GPT-5.5 Pro has 14.