# Claude Sonnet 5 vs Grok-2 (Dec 2024)

> Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 33.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-vs-grok-2
- Last updated: 2026-10-10
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. Claude Sonnet 5 scores higher in 8 categories and Grok-2 (Dec 2024) in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5 leads 66.1 to 19.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 94.7% for Claude Sonnet 5 and 11.5% for Grok-2 (Dec 2024).

## Snapshot

| | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 54.5 | 33.4 |
| Rank | 26 | 233 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Sonnet 5: 55.5 (#20)
- Grok-2 (Dec 2024): 32.9 (#254)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| WeirdML | 68.8% | 22.2% |
| LMArena Coding | 1483 | 1288 |
| DeepSWE | 53.8% | — |
| FrontierCode | 42.7% | — |
| CursorBench | 34.1% | — |
| LMArena WebDev | 1540 | — |
| SciCode | 53.6% | — |
| GSO | 37.3% | — |
| LiveBench Coding | — | 46.4% |
| ALE-Bench | 1,463 | — |

## Agentic & Tool Use

- Claude Sonnet 5: 42.7 (#16)
- Grok-2 (Dec 2024): —

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| APEX-Agents | 54.5% | — |
| GBAEval | 65.3% | — |
| LMArena Search | 1194 | — |
| Vending-Bench 2 | 6,378 | — |

## Reasoning

- Claude Sonnet 5: 48.2 (#37)
- Grok-2 (Dec 2024): 16.4 (#294)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | 60.6% | 22.7% |
| LMArena Hard Prompts | 1461 | 1272 |
| DTBench | 92.5% | 65.2% |
| Epoch Capabilities Index | 156.34 | 130.48 |
| NYT Connections (extended) | 75.1% | — |
| CritPt | 16.9% | — |
| Chess Puzzles | 35% | — |
| LiveBench Reasoning | — | 54.8% |
| Mystery Game Puzzles | 35% | — |
| LiveBench Data Analysis | — | 54.5% |
| LMCA | 50% | — |
| Surface Evolver Bench | 60% | — |
| Bench to the Future 3 | 0.14 | — |
| ForecastBench | 61.1 | — |
| LiveBench | — | 54.3% |

## Math

- Claude Sonnet 5: 66.1 (#21)
- Grok-2 (Dec 2024): 19.6 (#278)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.7% | 11.5% |
| LMArena Math | 1467 | 1283 |
| FrontierMath (Tiers 1-3) | 65.6% | — |
| FrontierMath Tier 4 | 29.3% | — |
| ProofBench | 77% | — |
| LiveBench Math | — | 54.9% |
| MATH Level 5 | — | 63.5% |
| FrontierMath (Feb 2025 set) | — | 0.7% |

## Knowledge

- Claude Sonnet 5: 55.7 (#42)
- Grok-2 (Dec 2024): 29.8 (#225)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 90.5% | 53.8% |
| LMArena Expert | 1491 | 1254 |
| SimpleQA Verified | 33.7% | — |
| Confabulations | — | 20.1% |

## Multimodal

- Claude Sonnet 5: 42.4 (#26)
- Grok-2 (Dec 2024): —

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Vision | 1275 | — |
| Blueprint-Bench 2 | 24.9% | — |
| LMArena Document | 1466 | — |

## Multilingual

- Claude Sonnet 5: 54.0 (#55)
- Grok-2 (Dec 2024): 43.3 (#183)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | 1431 | 1282 |
| LMArena Chinese | 1475 | 1289 |
| LMArena French | 1457 | 1317 |
| LMArena German | 1448 | 1287 |
| LMArena Japanese | 1422 | 1244 |
| LMArena Korean | 1411 | 1237 |
| LMArena Russian | 1452 | 1286 |
| LMArena Spanish | 1436 | 1281 |

## Instruction Following

- Claude Sonnet 5: 76.6 (#39)
- Grok-2 (Dec 2024): 67.1 (#197)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Instruction Following | 1453 | 1270 |
| LiveBench Instruction Following | — | 69.6% |

## Long Context

- Claude Sonnet 5: 44.8 (#53)
- Grok-2 (Dec 2024): 38.7 (#186)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | 1464 | 1276 |

## Writing & Preference

- Claude Sonnet 5: 69.4 (#24)
- Grok-2 (Dec 2024): 48.8 (#192)

| Benchmark | Claude Sonnet 5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | 1443 | 1305 |
| LMArena Creative Writing | 1416 | 1284 |
| LMArena Multi-Turn | 1454 | 1290 |
| Short-Story Creative Writing | — | 63.6% |
| EQ-Bench Creative Writing | 1794 | — |
| EQ-Bench 4 | 1236 | — |
| LiveBench Language | — | 45.6% |

## FAQ

### Is Claude Sonnet 5 better than Grok-2 (Dec 2024)?

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 33.4 on the Noometry Index.

### Is Claude Sonnet 5 or Grok-2 (Dec 2024) better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 32.9 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5 and Grok-2 (Dec 2024) share?

23 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Grok-2 (Dec 2024) has 34.