# Claude 2.1 vs Mistral Medium 3.5

> Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 25.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-mistral-medium-3-5
- Last updated: 2026-10-12
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude 2.1 scores higher in 1 category and Mistral Medium 3.5 in 3 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Mistral Medium 3.5 leads 39.1 to 10.2.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 25.2 | 40.2 |
| Rank | 345 | 152 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Claude 2.1: 26.2 (#327)
- Mistral Medium 3.5: 36.0 (#213)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena WebDev | — | 1264 |
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1461 |

## Reasoning

- Claude 2.1: 21.4 (#221)
- Mistral Medium 3.5: 17.3 (#295)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| Epoch Capabilities Index | 119.27 | 141.35 |
| Kagi LLM Benchmark | — | 41.4% |
| NYT Connections (extended) | — | 12.9% |
| LMArena Hard Prompts | — | 1436 |
| DTBench | 51% | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 10.2 (#315)
- Mistral Medium 3.5: 39.1 (#113)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |
| LMArena Math | — | 1431 |

## Knowledge

- Claude 2.1: 15.4 (#292)
- Mistral Medium 3.5: 40.0 (#126)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| GPQA Diamond | 33% | — |
| LMArena Expert | — | 1432 |
| MMLU | 73.5% | — |

## Multimodal

- Claude 2.1: —
- Mistral Medium 3.5: 38.3 (#65)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena Vision | — | 1223 |

## Multilingual

- Claude 2.1: —
- Mistral Medium 3.5: 51.9 (#100)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1442 |
| LMArena French | — | 1448 |
| LMArena German | — | 1451 |
| LMArena Korean | — | 1385 |
| LMArena Russian | — | 1395 |
| LMArena Spanish | — | 1409 |

## Instruction Following

- Claude 2.1: —
- Mistral Medium 3.5: 74.6 (#90)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena Instruction Following | — | 1415 |

## Long Context

- Claude 2.1: —
- Mistral Medium 3.5: 43.2 (#103)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena Longer Query | — | 1415 |

## Writing & Preference

- Claude 2.1: —
- Mistral Medium 3.5: 58.5 (#117)

| Benchmark | Claude 2.1 | Mistral Medium 3.5 |
|---|---|---|
| LMArena Text | — | 1421 |
| LMArena Creative Writing | — | 1374 |
| EQ-Bench 4 | — | 993 |
| LMArena Multi-Turn | — | 1423 |

## FAQ

### Is Claude 2.1 better than Mistral Medium 3.5?

Mistral Medium 3.5 is the stronger model overall, scoring 40.2 to 25.2 on the Noometry Index.

### Is Claude 2.1 or Mistral Medium 3.5 better for coding?

Mistral Medium 3.5 scores higher on coding benchmarks: 36.0 versus 26.2 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Mistral Medium 3.5 share?

1 benchmark has published results for both models. Claude 2.1 has 7 scored results on Noometry and Mistral Medium 3.5 has 22.