# Claude Haiku 5.5 vs Grok-2 (Dec 2024)

> Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 33.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-haiku-5-5-vs-grok-2
- Last updated: 2026-10-12
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Claude Haiku 5.5 scores higher in 4 categories and Grok-2 (Dec 2024) in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Claude Haiku 5.5 and 11.5% for Grok-2 (Dec 2024).

## Snapshot

| | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 49.5 | 33.7 |
| Rank | 52 | 239 |
| Context | 1M | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Haiku 5.5: 49.2 (#50)
- Grok-2 (Dec 2024): 33.3 (#258)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena WebDev | 1587 | — |
| WeirdML | — | 22.2% |
| LiveBench Coding | — | 46.4% |
| LMArena Coding | — | 1287 |

## Reasoning

- Claude Haiku 5.5: 35.2 (#69)
- Grok-2 (Dec 2024): 16.9 (#299)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | — | 22.7% |
| NYT Connections (extended) | 65.7% | — |
| LiveBench Reasoning | — | 54.8% |
| LMArena Hard Prompts | — | 1272 |
| Mystery Game Puzzles | 30% | — |
| DTBench | — | 65.2% |
| LiveBench Data Analysis | — | 54.5% |
| Epoch Capabilities Index | — | 130.48 |
| LiveBench | — | 54.3% |

## Math

- Claude Haiku 5.5: 73.6 (#18)
- Grok-2 (Dec 2024): 20.8 (#284)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 98.9% | 11.5% |
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| LiveBench Math | — | 54.9% |
| LMArena Math | — | 1283 |
| MATH Level 5 | — | 63.5% |
| FrontierMath (Feb 2025 set) | — | 0.7% |

## Knowledge

- Claude Haiku 5.5: 50.8 (#70)
- Grok-2 (Dec 2024): 29.8 (#233)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 89.6% | 53.8% |
| SimpleQA Verified | 23.8% | — |
| Confabulations | — | 20.1% |
| LMArena Expert | — | 1254 |

## Multimodal

- Claude Haiku 5.5: 43.7 (#21)
- Grok-2 (Dec 2024): —

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| Furniture Assembly | 47.5% | — |

## Multilingual

- Claude Haiku 5.5: —
- Grok-2 (Dec 2024): 43.1 (#188)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | — | 1282 |
| LMArena Chinese | — | 1289 |
| LMArena French | — | 1318 |
| LMArena German | — | 1287 |
| LMArena Japanese | — | 1244 |
| LMArena Korean | — | 1237 |
| LMArena Russian | — | 1286 |
| LMArena Spanish | — | 1281 |

## Instruction Following

- Claude Haiku 5.5: —
- Grok-2 (Dec 2024): 66.9 (#202)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LiveBench Instruction Following | — | 69.6% |
| LMArena Instruction Following | — | 1270 |

## Long Context

- Claude Haiku 5.5: —
- Grok-2 (Dec 2024): 38.8 (#190)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | — | 1276 |

## Writing & Preference

- Claude Haiku 5.5: —
- Grok-2 (Dec 2024): 48.6 (#198)

| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | — | 1305 |
| LMArena Creative Writing | — | 1284 |
| Short-Story Creative Writing | — | 63.6% |
| LMArena Multi-Turn | — | 1290 |
| LiveBench Language | — | 45.6% |

## FAQ

### Is Claude Haiku 5.5 better than Grok-2 (Dec 2024)?

Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 33.7 on the Noometry Index.

### Is Claude Haiku 5.5 or Grok-2 (Dec 2024) better for coding?

Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 33.3 in the Noometry coding category.

### How many benchmarks do Claude Haiku 5.5 and Grok-2 (Dec 2024) share?

2 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Grok-2 (Dec 2024) has 34.