# Claude 3 Sonnet vs Grok-3 mini

> Grok-3 mini is the stronger model overall, scoring 41.2 to 29.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-grok-3-mini
- Last updated: 2026-10-10
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Claude 3 Sonnet scores higher in 1 category and Grok-3 mini in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok-3 mini leads 42.1 to 10.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 77.8% for Grok-3 mini.

## Snapshot

| | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 29.0 | 41.2 |
| Rank | 319 | 141 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- Grok-3 mini: 40.8 (#131)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| WeirdML | 10.2% | 42.6% |
| LMArena Coding | 1223 | 1379 |
| Aider Polyglot | — | 49.3% |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- Grok-3 mini: 13.6 (#334)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1375 |
| Epoch Capabilities Index | 120.7 | 140.35 |
| ARC-AGI-2 | — | 0.4% |
| Kagi LLM Benchmark | — | 61.3% |
| ARC-AGI-1 | — | 16.5% |
| DTBench | 53.6% | — |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- Grok-3 mini: 42.1 (#85)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 77.8% |
| LMArena Math | 1213 | 1386 |
| MATH Level 5 | 18.2% | 90.9% |
| Omni-MATH | — | 31.8% |
| FrontierMath (Feb 2025 set) | — | 5.9% |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- Grok-3 mini: 46.4 (#81)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| GPQA Diamond | 40.6% | 76.3% |
| LMArena Expert | 1173 | 1395 |
| MMLU-Pro | — | 79.9% |
| Confabulations | — | 10.8% |
| GPQA (HELM) | — | 67.5% |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- Grok-3 mini: —

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- Grok-3 mini: 48.1 (#145)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Non-English | 1205 | 1352 |
| LMArena Chinese | 1189 | 1387 |
| LMArena French | 1229 | 1357 |
| LMArena German | 1204 | 1349 |
| LMArena Japanese | 1131 | 1342 |
| LMArena Korean | 1128 | 1335 |
| LMArena Russian | 1227 | 1353 |
| LMArena Spanish | 1204 | 1381 |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- Grok-3 mini: 78.5 (#9)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Instruction Following | 1199 | 1357 |
| IFEval | — | 95.1% |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- Grok-3 mini: 41.0 (#147)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Longer Query | 1211 | 1372 |
| Fiction.LiveBench | — | 66.7% |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- Grok-3 mini: 52.5 (#169)

| Benchmark | Claude 3 Sonnet | Grok-3 mini |
|---|---|---|
| LMArena Text | 1218 | 1370 |
| LMArena Creative Writing | 1186 | 1342 |
| LMArena Multi-Turn | 1227 | 1355 |
| Short-Story Creative Writing | — | 73.5% |
| WildBench | — | 65.1% |

## FAQ

### Is Claude 3 Sonnet better than Grok-3 mini?

Grok-3 mini is the stronger model overall, scoring 41.2 to 29.0 on the Noometry Index.

### Is Claude 3 Sonnet or Grok-3 mini better for coding?

Grok-3 mini scores higher on coding benchmarks: 40.8 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Grok-3 mini share?

22 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Grok-3 mini has 35.