# Claude 3 Haiku vs Grok 4.20 (Non-Reasoning)

> Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 25.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-haiku-vs-grok-4-20
- Last updated: 2026-10-12
- Shared benchmarks: 27

## Summary

- They share 27 benchmarks with published results for both. Claude 3 Haiku scores higher in 0 categories and Grok 4.20 (Non-Reasoning) in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Grok 4.20 (Non-Reasoning) leads 48.2 to 9.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.8% for Claude 3 Haiku and 92.2% for Grok 4.20 (Non-Reasoning).

## Snapshot

| | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 25.9 | 48.6 |
| Rank | 340 | 54 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3 Haiku: 26.4 (#325)
- Grok 4.20 (Non-Reasoning): 42.1 (#112)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| WeirdML | 9.8% | 52.3% |
| LMArena Coding | 1199 | 1459 |
| LMArena WebDev | — | 1375 |
| BigCodeBench Instruct | 39.4% | — |
| BigCodeBench Complete | 50.1% | — |
| CadEval | 12% | — |
| ALE-Bench | — | 1,150 |
| HumanEval+ | 68.9% | — |
| MBPP+ | 68.8% | — |

## Agentic & Tool Use

- Claude 3 Haiku: —
- Grok 4.20 (Non-Reasoning): 34.4 (#46)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Terminal-Bench | — | 57.3% |
| τ²-bench Banking | — | 18% |
| LMArena Search | — | 1189 |
| Vending-Bench 2 | — | 4,663 |

## Reasoning

- Claude 3 Haiku: 16.3 (#307)
- Grok 4.20 (Non-Reasoning): 52.3 (#32)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Kagi LLM Benchmark | 34.2% | 75% |
| LMArena Hard Prompts | 1174 | 1451 |
| DTBench | 50.1% | 90.1% |
| LMCA | 8.8% | 38.7% |
| Epoch Capabilities Index | 118.35 | 151.98 |
| ForecastBench | 53.2 | 61.4 |
| ARC-AGI-2 | — | 65.1% |
| NYT Connections (extended) | — | 85.4% |
| ARC-AGI-1 | — | 89.5% |
| Chess Puzzles | — | 24% |
| Thematic Generalization | — | 63.8% |
| WinoGrande | 74.2% | — |

## Math

- Claude 3 Haiku: 9.8 (#319)
- Grok 4.20 (Non-Reasoning): 48.2 (#65)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.8% | 92.2% |
| LMArena Math | 1188 | 1455 |
| FrontierMath (Tiers 1-3) | — | 44.9% |
| FrontierMath Tier 4 | — | 17.1% |
| ProofBench | — | 14% |
| MATH Level 5 | 14.9% | — |

## Knowledge

- Claude 3 Haiku: 17.3 (#285)
- Grok 4.20 (Non-Reasoning): 52.8 (#60)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| GPQA Diamond | 36.3% | 89.3% |
| LMArena Expert | 1148 | 1439 |
| SimpleQA Verified | — | 30.2% |
| Confabulations | 34.2% | — |
| MMLU | 73.8% | — |

## Multimodal

- Claude 3 Haiku: 23.6 (#128)
- Grok 4.20 (Non-Reasoning): 33.3 (#98)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Vision | 950 | 1263 |
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | — | 1416 |
| ScienceQA | 72% | — |

## Multilingual

- Claude 3 Haiku: 36.0 (#243)
- Grok 4.20 (Non-Reasoning): 54.5 (#40)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Non-English | 1178 | 1441 |
| LMArena Chinese | 1155 | 1481 |
| LMArena French | 1195 | 1476 |
| LMArena German | 1174 | 1465 |
| LMArena Japanese | 1102 | 1449 |
| LMArena Korean | 1109 | 1417 |
| LMArena Russian | 1204 | 1458 |
| LMArena Spanish | 1166 | 1443 |

## Instruction Following

- Claude 3 Haiku: 61.3 (#247)
- Grok 4.20 (Non-Reasoning): 74.8 (#83)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Instruction Following | 1173 | 1420 |

## Long Context

- Claude 3 Haiku: 36.1 (#237)
- Grok 4.20 (Non-Reasoning): 45.5 (#34)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Longer Query | 1190 | 1437 |
| CL-bench | — | 22.2% |
| CL-bench Life | — | 11.9% |

## Writing & Preference

- Claude 3 Haiku: 29.7 (#291)
- Grok 4.20 (Non-Reasoning): 65.7 (#44)

| Benchmark | Claude 3 Haiku | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Text | 1195 | 1451 |
| LMArena Creative Writing | 1157 | 1438 |
| EQ-Bench Creative Writing | 717 | 1574 |
| LMArena Multi-Turn | 1190 | 1456 |

## FAQ

### Is Claude 3 Haiku better than Grok 4.20 (Non-Reasoning)?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 25.9 on the Noometry Index.

### Is Claude 3 Haiku or Grok 4.20 (Non-Reasoning) better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 26.4 in the Noometry coding category.

### How many benchmarks do Claude 3 Haiku and Grok 4.20 (Non-Reasoning) share?

27 benchmarks have published results for both models. Claude 3 Haiku has 37 scored results on Noometry and Grok 4.20 (Non-Reasoning) has 46.