# Claude 3 Haiku vs Claude 3 Sonnet

> Claude 3 Sonnet is the stronger model overall, scoring 29.0 to 25.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-haiku-vs-claude-3-sonnet
- Last updated: 2026-10-12
- Shared benchmarks: 30

## Summary

- They share 30 benchmarks with published results for both. Claude 3 Haiku scores higher in 0 categories and Claude 3 Sonnet in 9 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Claude 3 Sonnet leads 42.1 to 29.7.

## Snapshot

| | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Noometry Index | 25.9 | 29.0 |
| Rank | 340 | 319 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3 Haiku: 26.4 (#325)
- Claude 3 Sonnet: 29.6 (#302)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| WeirdML | 9.8% | 10.2% |
| BigCodeBench Instruct | 39.4% | 42.7% |
| LMArena Coding | 1199 | 1223 |
| BigCodeBench Complete | 50.1% | 53.8% |
| HumanEval+ | 68.9% | 64% |
| MBPP+ | 68.8% | 69.3% |
| CadEval | 12% | — |

## Reasoning

- Claude 3 Haiku: 16.3 (#307)
- Claude 3 Sonnet: 20.5 (#237)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Hard Prompts | 1174 | 1197 |
| DTBench | 50.1% | 53.6% |
| Epoch Capabilities Index | 118.35 | 120.7 |
| WinoGrande | 74.2% | 75.1% |
| Kagi LLM Benchmark | 34.2% | — |
| LMCA | 8.8% | — |
| ForecastBench | 53.2 | — |

## Math

- Claude 3 Haiku: 9.8 (#319)
- Claude 3 Sonnet: 10.7 (#310)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.8% | 2.5% |
| LMArena Math | 1188 | 1213 |
| MATH Level 5 | 14.9% | 18.2% |

## Knowledge

- Claude 3 Haiku: 17.3 (#285)
- Claude 3 Sonnet: 21.1 (#276)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| GPQA Diamond | 36.3% | 40.6% |
| LMArena Expert | 1148 | 1173 |
| MMLU | 73.8% | 75.9% |
| Confabulations | 34.2% | — |

## Multimodal

- Claude 3 Haiku: 23.6 (#128)
- Claude 3 Sonnet: 25.2 (#125)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Vision | 950 | 984 |
| ScienceQA | 72% | — |

## Multilingual

- Claude 3 Haiku: 36.0 (#243)
- Claude 3 Sonnet: 37.8 (#234)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Non-English | 1178 | 1205 |
| LMArena Chinese | 1155 | 1189 |
| LMArena French | 1195 | 1229 |
| LMArena German | 1174 | 1204 |
| LMArena Japanese | 1102 | 1131 |
| LMArena Korean | 1109 | 1128 |
| LMArena Russian | 1204 | 1227 |
| LMArena Spanish | 1166 | 1204 |

## Instruction Following

- Claude 3 Haiku: 61.3 (#247)
- Claude 3 Sonnet: 62.8 (#235)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Instruction Following | 1173 | 1199 |

## Long Context

- Claude 3 Haiku: 36.1 (#237)
- Claude 3 Sonnet: 36.7 (#228)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Longer Query | 1190 | 1211 |

## Writing & Preference

- Claude 3 Haiku: 29.7 (#291)
- Claude 3 Sonnet: 42.1 (#238)

| Benchmark | Claude 3 Haiku | Claude 3 Sonnet |
|---|---|---|
| LMArena Text | 1195 | 1218 |
| LMArena Creative Writing | 1157 | 1186 |
| LMArena Multi-Turn | 1190 | 1227 |
| EQ-Bench Creative Writing | 717 | — |

## FAQ

### Is Claude 3 Haiku better than Claude 3 Sonnet?

Claude 3 Sonnet is the stronger model overall, scoring 29.0 to 25.9 on the Noometry Index.

### Is Claude 3 Haiku or Claude 3 Sonnet better for coding?

Claude 3 Sonnet scores higher on coding benchmarks: 29.6 versus 26.4 in the Noometry coding category.

### How many benchmarks do Claude 3 Haiku and Claude 3 Sonnet share?

30 benchmarks have published results for both models. Claude 3 Haiku has 37 scored results on Noometry and Claude 3 Sonnet has 30.