# Claude Sonnet 4.6 vs Grok 3

> Claude Sonnet 4.6 is the stronger model overall, scoring 50.1 to 39.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-4-6-vs-grok-3
- Last updated: 2026-10-10
- Shared benchmarks: 27

## Summary

- They share 27 benchmarks with published results for both. Claude Sonnet 4.6 scores higher in 9 categories and Grok 3 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Sonnet 4.6 leads 46.1 to 13.8.
- The biggest single-benchmark swing is ARC-AGI-1: 86.5% for Claude Sonnet 4.6 and 5.5% for Grok 3.

## Snapshot

| | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 50.1 | 39.6 |
| Rank | 42 | 150 |
| Context | 1M | — |
| Input $/M | $3 | — |
| Output $/M | $15 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Sonnet 4.6: 46.0 (#62)
- Grok 3: 41.5 (#113)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| WeirdML | 66.1% | 37.2% |
| LMArena Coding | 1504 | 1432 |
| SWE-bench Verified | 75.2% | — |
| DeepSWE | 29.9% | — |
| FrontierCode | 24.3% | — |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1521 | — |
| SciCode | 46.8% | — |
| ALE-Bench | 1,327 | — |

## Agentic & Tool Use

- Claude Sonnet 4.6: 39.1 (#26)
- Grok 3: 30.2 (#69)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| Terminal-Bench | 53.4% | — |
| APEX-Agents | 43% | — |
| OSWorld 2.0 | 9.3% | — |
| DeepResearch Bench | 54.9% | — |
| OSWorld | 72.1% | — |
| BALROG | — | 29.5% |
| ExploitBench | 23.6% | — |
| GBAEval | 48.8% | — |
| GDP.pdf | 18% | — |
| LMArena Search | 1221 | — |
| Vending-Bench 2 | 7,204 | — |

## Reasoning

- Claude Sonnet 4.6: 46.1 (#40)
- Grok 3: 13.8 (#322)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| ARC-AGI-2 | 60.4% | 0% |
| ARC-AGI-1 | 86.5% | 5.5% |
| LMArena Hard Prompts | 1485 | 1433 |
| Epoch Capabilities Index | 152.25 | 138.34 |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| NYT Connections (extended) | 80.9% | — |
| CritPt | 3.1% | — |
| Chess Puzzles | 13% | — |
| Thematic Generalization | 76.3% | — |
| Mystery Game Puzzles | 16% | — |
| DTBench | 89.9% | — |
| LMCA | 46.5% | — |
| ForecastBench | 62 | — |

## Math

- Claude Sonnet 4.6: 51.9 (#41)
- Grok 3: 36.2 (#122)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 85.8% | 55.6% |
| LMArena Math | 1463 | 1390 |
| FrontierMath (Feb 2025 set) | 32.4% | 3.8% |
| FrontierMath Tier 4 (v1) | 8.3% | 0% |
| ProofBench | 45% | — |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |

## Knowledge

- Claude Sonnet 4.6: 51.6 (#60)
- Grok 3: 46.0 (#76)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| GPQA Diamond | 87.4% | 75.8% |
| Vectara Hallucination Rate | 10.6% | 5.8% |
| LMArena Expert | 1500 | 1420 |
| SimpleQA Verified | 35.5% | — |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| GPQA (HELM) | — | 65% |

## Multimodal

- Claude Sonnet 4.6: 38.0 (#61)
- Grok 3: —

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| LMArena Vision | 1283 | — |
| Blueprint-Bench 2 | 6.7% | — |
| LMArena Document | 1482 | — |

## Multilingual

- Claude Sonnet 4.6: 54.6 (#39)
- Grok 3: 52.5 (#81)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| LMArena Non-English | 1440 | 1411 |
| LMArena Chinese | 1491 | 1448 |
| LMArena French | 1465 | 1460 |
| LMArena German | 1428 | 1431 |
| LMArena Japanese | 1419 | 1389 |
| LMArena Korean | 1411 | 1374 |
| LMArena Russian | 1440 | 1416 |
| LMArena Spanish | 1465 | 1417 |

## Instruction Following

- Claude Sonnet 4.6: 77.6 (#23)
- Grok 3: 75.2 (#69)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1476 | 1409 |
| IFEval | — | 88.4% |

## Long Context

- Claude Sonnet 4.6: 45.3 (#40)
- Grok 3: 38.7 (#187)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1479 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Claude Sonnet 4.6: 70.4 (#22)
- Grok 3: 56.0 (#136)

| Benchmark | Claude Sonnet 4.6 | Grok 3 |
|---|---|---|
| LMArena Text | 1458 | 1426 |
| LMArena Creative Writing | 1435 | 1414 |
| EQ-Bench Creative Writing | 1810 | 1186 |
| LMArena Multi-Turn | 1464 | 1424 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |
| EQ-Bench 4 | 1207 | — |

## FAQ

### Is Claude Sonnet 4.6 better than Grok 3?

Claude Sonnet 4.6 is the stronger model overall, scoring 50.1 to 39.6 on the Noometry Index.

### Is Claude Sonnet 4.6 or Grok 3 better for coding?

Claude Sonnet 4.6 scores higher on coding benchmarks: 46.0 versus 41.5 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 4.6 and Grok 3 share?

27 benchmarks have published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Grok 3 has 40.