# Claude Opus 5.5 vs Gemma 2B

> Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 29.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-5-5-vs-gemma-2b
- Last updated: 2026-10-11
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Claude Opus 5.5 scores higher in 7 categories and Gemma 2B in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Opus 5.5 leads 91.8 to 30.0.
- Gemma 2B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 68.6 | 29.6 |
| Rank | 3 | 307 |
| Context | 1M | — |
| Input $/M | $4 | — |
| Output $/M | $20 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Opus 5.5: 71.9 (#3)
- Gemma 2B: 29.4 (#305)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Coding | 1547 | 1010 |
| FrontierCode | 54.6% | — |
| CursorBench | 57.8% | — |
| LMArena WebDev | 1813 | — |
| FrontierSWE | 62.3% | — |
| SciCode | 66.9% | — |
| MirrorCode | 77.4% | — |
| ALE-Bench | 2,147 | — |
| HumanEval+ | — | 20.7% |
| MBPP+ | — | 34.1% |

## Agentic & Tool Use

- Claude Opus 5.5: 45.3 (#15)
- Gemma 2B: —

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| APEX-Agents | 73.5% | — |
| GDP.pdf | 30.6% | — |
| Vending-Bench 2 | 9,235 | — |

## Reasoning

- Claude Opus 5.5: 80.2 (#3)
- Gemma 2B: 18.8 (#275)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Hard Prompts | 1535 | 989 |
| Epoch Capabilities Index | 167.33 | 94.2 |
| ARC-AGI-2 | 93.3% | — |
| NYT Connections (extended) | 88.5% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 31.7% | — |
| EBR-Bench | 71.4% | — |
| Mystery Game Puzzles | 71% | — |
| DTBench | 98.9% | — |
| LMCA | 68.2% | — |
| BIG-Bench Hard | — | 35.2% |
| HellaSwag | — | 71.4% |
| PIQA | — | 77.3% |
| WinoGrande | — | 65.4% |

## Math

- Claude Opus 5.5: 91.8 (#3)
- Gemma 2B: 30.0 (#239)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Math | 1506 | 1009 |
| FrontierMath (Tiers 1-3) | 91.2% | — |
| FrontierMath Tier 4 | 95% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| FrontierMath Erdős | 2.9% | — |
| GSM8K | — | 17.7% |

## Knowledge

- Claude Opus 5.5: 66.4 (#10)
- Gemma 2B: —

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| GPQA Diamond | 90.6% | — |
| SimpleQA Verified | 72.2% | — |
| LMArena Expert | 1547 | — |
| ARC (AI2) Challenge | — | 42.1% |
| BoolQ | — | 69.4% |
| MMLU | — | 42.3% |
| TriviaQA | — | 53.2% |

## Multimodal

- Claude Opus 5.5: 57.8 (#1)
- Gemma 2B: —

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Vision | 1321 | — |
| Blueprint-Bench 2 | 51.2% | — |
| Furniture Assembly | 83.3% | — |

## Multilingual

- Claude Opus 5.5: 59.1 (#2)
- Gemma 2B: 23.0 (#294)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Non-English | 1507 | 958 |
| LMArena Chinese | 1588 | 986 |
| LMArena Russian | 1520 | 937 |
| LMArena French | 1514 | — |
| LMArena Spanish | 1507 | — |

## Instruction Following

- Claude Opus 5.5: 80.0 (#3)
- Gemma 2B: 48.5 (#302)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Instruction Following | 1537 | 970 |

## Long Context

- Claude Opus 5.5: 47.1 (#19)
- Gemma 2B: 29.9 (#291)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Longer Query | 1532 | 981 |

## Writing & Preference

- Claude Opus 5.5: 78.2 (#3)
- Gemma 2B: 24.0 (#308)

| Benchmark | Claude Opus 5.5 | Gemma 2B |
|---|---|---|
| LMArena Text | 1515 | 1002 |
| LMArena Creative Writing | 1533 | 987 |
| LMArena Multi-Turn | 1499 | 945 |
| EQ-Bench Creative Writing | 2050 | — |

## FAQ

### Is Claude Opus 5.5 better than Gemma 2B?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 29.6 on the Noometry Index.

### Is Claude Opus 5.5 or Gemma 2B better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 29.4 in the Noometry coding category.

### How many benchmarks do Claude Opus 5.5 and Gemma 2B share?

12 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and Gemma 2B has 23.