# Claude 3 Sonnet vs Granite 4.2 30b

> Granite 4.2 30b is the stronger model overall, scoring 41.8 to 29.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-granite-4-2-30b
- Last updated: 2026-10-12
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Granite 4.2 30b in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Granite 4.2 30b leads 39.1 to 21.1.
- Granite 4.2 30b has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| Provider | Anthropic | IBM |
| Noometry Index | 29.0 | 41.8 |
| Rank | 319 | 130 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- Granite 4.2 30b: 41.0 (#126)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Coding | 1223 | 1396 |
| WeirdML | 10.2% | — |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- Granite 4.2 30b: 27.8 (#112)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1374 |
| DTBench | 53.6% | — |
| Epoch Capabilities Index | 120.7 | — |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- Granite 4.2 30b: —

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| LMArena Math | 1213 | — |
| MATH Level 5 | 18.2% | — |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- Granite 4.2 30b: 39.1 (#138)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Expert | 1173 | 1406 |
| GPQA Diamond | 40.6% | — |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- Granite 4.2 30b: —

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- Granite 4.2 30b: 47.3 (#151)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Non-English | 1205 | 1340 |
| LMArena Chinese | 1189 | 1414 |
| LMArena Russian | 1227 | 1343 |
| LMArena French | 1229 | — |
| LMArena German | 1204 | — |
| LMArena Japanese | 1131 | — |
| LMArena Korean | 1128 | — |
| LMArena Spanish | 1204 | — |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- Granite 4.2 30b: 71.2 (#155)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Instruction Following | 1199 | 1347 |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- Granite 4.2 30b: 41.4 (#140)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Longer Query | 1211 | 1359 |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- Granite 4.2 30b: 53.8 (#156)

| Benchmark | Claude 3 Sonnet | Granite 4.2 30b |
|---|---|---|
| LMArena Text | 1218 | 1361 |
| LMArena Creative Writing | 1186 | 1288 |
| LMArena Multi-Turn | 1227 | 1339 |

## FAQ

### Is Claude 3 Sonnet better than Granite 4.2 30b?

Granite 4.2 30b is the stronger model overall, scoring 41.8 to 29.0 on the Noometry Index.

### Is Claude 3 Sonnet or Granite 4.2 30b better for coding?

Granite 4.2 30b scores higher on coding benchmarks: 41.0 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Granite 4.2 30b share?

11 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Granite 4.2 30b has 11.