# Claude 3 Haiku vs Mistral Medium 3.5

> Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 25.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-haiku-vs-mistral-medium-3-5
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Claude 3 Haiku scores higher in 0 categories and Mistral Medium 3.5 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Mistral Medium 3.5 leads 39.1 to 9.8.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 34.2% for Claude 3 Haiku and 41.4% for Mistral Medium 3.5.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 25.9 | 40.2 |
| Rank | 340 | 152 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Haiku: 26.4 (#325)
- Mistral Medium 3.5: 36.0 (#213)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Coding | 1199 | 1461 |
| LMArena WebDev | — | 1264 |
| WeirdML | 9.8% | — |
| BigCodeBench Instruct | 39.4% | — |
| BigCodeBench Complete | 50.1% | — |
| CadEval | 12% | — |
| HumanEval+ | 68.9% | — |
| MBPP+ | 68.8% | — |

## Reasoning

- Claude 3 Haiku: 16.3 (#307)
- Mistral Medium 3.5: 17.3 (#295)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| Kagi LLM Benchmark | 34.2% | 41.4% |
| LMArena Hard Prompts | 1174 | 1436 |
| Epoch Capabilities Index | 118.35 | 141.35 |
| NYT Connections (extended) | — | 12.9% |
| DTBench | 50.1% | — |
| LMCA | 8.8% | — |
| ForecastBench | 53.2 | — |
| WinoGrande | 74.2% | — |

## Math

- Claude 3 Haiku: 9.8 (#319)
- Mistral Medium 3.5: 39.1 (#113)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Math | 1188 | 1431 |
| OTIS Mock AIME 2024-2025 | 1.8% | — |
| MATH Level 5 | 14.9% | — |

## Knowledge

- Claude 3 Haiku: 17.3 (#285)
- Mistral Medium 3.5: 40.0 (#126)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Expert | 1148 | 1432 |
| GPQA Diamond | 36.3% | — |
| Confabulations | 34.2% | — |
| MMLU | 73.8% | — |

## Multimodal

- Claude 3 Haiku: 23.6 (#128)
- Mistral Medium 3.5: 38.3 (#65)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Vision | 950 | 1223 |
| ScienceQA | 72% | — |

## Multilingual

- Claude 3 Haiku: 36.0 (#243)
- Mistral Medium 3.5: 51.9 (#100)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Non-English | 1178 | 1404 |
| LMArena Chinese | 1155 | 1442 |
| LMArena French | 1195 | 1448 |
| LMArena German | 1174 | 1451 |
| LMArena Korean | 1109 | 1385 |
| LMArena Russian | 1204 | 1395 |
| LMArena Spanish | 1166 | 1409 |
| LMArena Japanese | 1102 | — |

## Instruction Following

- Claude 3 Haiku: 61.3 (#247)
- Mistral Medium 3.5: 74.6 (#90)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Instruction Following | 1173 | 1415 |

## Long Context

- Claude 3 Haiku: 36.1 (#237)
- Mistral Medium 3.5: 43.2 (#103)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Longer Query | 1190 | 1415 |

## Writing & Preference

- Claude 3 Haiku: 29.7 (#291)
- Mistral Medium 3.5: 58.5 (#117)

| Benchmark | Claude 3 Haiku | Mistral Medium 3.5 |
|---|---|---|
| LMArena Text | 1195 | 1421 |
| LMArena Creative Writing | 1157 | 1374 |
| LMArena Multi-Turn | 1190 | 1423 |
| EQ-Bench Creative Writing | 717 | — |
| EQ-Bench 4 | — | 993 |

## FAQ

### Is Claude 3 Haiku better than Mistral Medium 3.5?

Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 25.9 on the Noometry Index.

### Is Claude 3 Haiku or Mistral Medium 3.5 better for coding?

Mistral Medium 3.5 scores higher on coding benchmarks: 36.0 versus 26.4 in the Noometry coding category.

### How many benchmarks do Claude 3 Haiku and Mistral Medium 3.5 share?

19 benchmarks have published results for both models. Claude 3 Haiku has 37 scored results on Noometry and Mistral Medium 3.5 has 22.