# Claude Sonnet 4.5 vs Gemma 2B

> Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 29.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-4-5-vs-gemma-2b
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Claude Sonnet 4.5 scores higher in 7 categories and Gemma 2B in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude Sonnet 4.5 leads 66.5 to 24.0.
- Gemma 2B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 44.1 | 29.6 |
| Rank | 81 | 307 |
| Context | 200K | — |
| Input $/M | $3 | — |
| Output $/M | $15 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 4.5: 47.3 (#61)
- Gemma 2B: 29.4 (#305)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Coding | 1489 | 1010 |
| SWE-bench Verified | 71.3% | — |
| SWE-bench Verified (bash only) | 71.4% | — |
| LMArena WebDev | 1393 | — |
| SWE-bench Multilingual | 67% | — |
| SciCode | 44.7% | — |
| GSO | 14.7% | — |
| WeirdML | 47.7% | — |
| ALE-Bench | 796.15 | — |
| AlgoTune | 1.52 | — |
| HumanEval+ | — | 20.7% |
| MBPP+ | — | 34.1% |

## Agentic & Tool Use

- Claude Sonnet 4.5: 38.3 (#32)
- Gemma 2B: —

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| Terminal-Bench | 46.5% | — |
| Berkeley Function Calling Leaderboard | 73.2% | — |
| GDPval | 42.5% | — |
| Remote Labor Index | 2.1% | — |
| τ²-bench Airline | 72% | — |
| τ²-bench Banking | 25.3% | — |
| τ²-bench Retail | 72.4% | — |
| τ²-bench Telecom | 84.9% | — |
| Cybench | 60% | — |
| DeepResearch Bench | 52.6% | — |
| OSWorld | 62.9% | — |
| LMArena Search | 1159 | — |
| METR Time Horizons | 67.4% | — |
| Vending-Bench 2 | 3,839 | — |

## Reasoning

- Claude Sonnet 4.5: 26.9 (#125)
- Gemma 2B: 18.8 (#275)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Hard Prompts | 1462 | 989 |
| Epoch Capabilities Index | 146.84 | 94.2 |
| ARC-AGI-2 | 13.6% | — |
| SimpleBench | 54.3% | — |
| Kagi LLM Benchmark | 57.9% | — |
| NYT Connections (extended) | 37.3% | — |
| ARC-AGI-1 | 63.7% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | 12% | — |
| EnigmaEval | 6% | — |
| EBR-Bench | 2.4% | — |
| Mystery Game Puzzles | 17% | — |
| DTBench | 83.2% | — |
| LMCA | 38.8% | — |
| BIG-Bench Hard | — | 35.2% |
| ForecastBench | 61.9 | — |
| HellaSwag | — | 71.4% |
| PIQA | — | 77.3% |
| WinoGrande | — | 65.4% |

## Math

- Claude Sonnet 4.5: 32.3 (#216)
- Gemma 2B: 30.0 (#239)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Math | 1449 | 1009 |
| FrontierMath (Tiers 1-3) | 23.9% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 77.8% | — |
| ProofBench | 19% | — |
| Omni-MATH | 55.3% | — |
| MATH Level 5 | 97.7% | — |
| FrontierMath (Feb 2025 set) | 15.2% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
| GSM8K | — | 17.7% |

## Knowledge

- Claude Sonnet 4.5: 48.4 (#76)
- Gemma 2B: —

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| GPQA Diamond | 82.3% | — |
| Humanity's Last Exam | 13.7% | — |
| SimpleQA Verified | 30.7% | — |
| MMLU-Pro | 86.9% | — |
| Vectara Hallucination Rate | 12% | — |
| GPQA (HELM) | 68.6% | — |
| LMArena Expert | 1482 | — |
| ARC (AI2) Challenge | — | 42.1% |
| BoolQ | — | 69.4% |
| MMLU | — | 42.3% |
| TriviaQA | — | 53.2% |

## Multimodal

- Claude Sonnet 4.5: 34.8 (#89)
- Gemma 2B: —

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| VPCT | 39.8% | — |
| LMArena Document | 1450 | — |

## Multilingual

- Claude Sonnet 4.5: 53.4 (#69)
- Gemma 2B: 23.0 (#294)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Non-English | 1425 | 958 |
| LMArena Chinese | 1459 | 986 |
| LMArena Russian | 1437 | 937 |
| LMArena French | 1458 | — |
| LMArena German | 1427 | — |
| LMArena Japanese | 1390 | — |
| LMArena Korean | 1403 | — |
| LMArena Spanish | 1457 | — |

## Instruction Following

- Claude Sonnet 4.5: 75.0 (#78)
- Gemma 2B: 48.5 (#302)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Instruction Following | 1459 | 970 |
| IFEval | 85% | — |

## Long Context

- Claude Sonnet 4.5: 45.2 (#46)
- Gemma 2B: 29.9 (#291)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Longer Query | 1476 | 981 |

## Writing & Preference

- Claude Sonnet 4.5: 66.5 (#34)
- Gemma 2B: 24.0 (#308)

| Benchmark | Claude Sonnet 4.5 | Gemma 2B |
|---|---|---|
| LMArena Text | 1439 | 1002 |
| LMArena Creative Writing | 1442 | 987 |
| LMArena Multi-Turn | 1465 | 945 |
| EQ-Bench Creative Writing | 1678 | — |
| WildBench | 85.4% | — |

## FAQ

### Is Claude Sonnet 4.5 better than Gemma 2B?

Claude Sonnet 4.5 is the stronger model overall, scoring 44.1 to 29.6 on the Noometry Index.

### Is Claude Sonnet 4.5 or Gemma 2B better for coding?

Claude Sonnet 4.5 scores higher on coding benchmarks: 47.3 versus 29.4 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 4.5 and Gemma 2B share?

12 benchmarks have published results for both models. Claude Sonnet 4.5 has 73 scored results on Noometry and Gemma 2B has 23.