# Devstral Small 2505 vs Qwen3.5 Max Preview

> Qwen3.5 Max Preview is the stronger model overall, scoring 45.3 to 34.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-qwen3-5-max-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Qwen3.5 Max Preview leads 30.8 to 19.7.
- Devstral Small 2505 has downloadable open weights; the other is API-only.

## Snapshot

| | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 34.3 | 45.3 |
| Rank | 233 | 71 |
| Context | 128K | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.30 | — |
| Weights | Open | Proprietary |

## Coding

- Devstral Small 2505: 38.9 (#166)
- Qwen3.5 Max Preview: 44.0 (#77)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1487 |

## Reasoning

- Devstral Small 2505: 19.7 (#252)
- Qwen3.5 Max Preview: 30.8 (#84)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1483 |

## Math

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 40.1 (#94)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Math | — | 1474 |

## Knowledge

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 41.8 (#107)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Expert | — | 1489 |

## Multilingual

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 56.2 (#22)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Non-English | — | 1465 |
| LMArena Chinese | — | 1534 |
| LMArena French | — | 1484 |
| LMArena German | — | 1487 |
| LMArena Japanese | — | 1495 |
| LMArena Korean | — | 1438 |
| LMArena Russian | — | 1471 |
| LMArena Spanish | — | 1470 |

## Instruction Following

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 77.0 (#31)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Instruction Following | — | 1467 |

## Long Context

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 45.2 (#45)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Longer Query | — | 1476 |

## Writing & Preference

- Devstral Small 2505: —
- Qwen3.5 Max Preview: 66.0 (#41)

| Benchmark | Devstral Small 2505 | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Text | — | 1470 |
| LMArena Creative Writing | — | 1464 |
| LMArena Multi-Turn | — | 1478 |

## FAQ

### Is Devstral Small 2505 better than Qwen3.5 Max Preview?

Qwen3.5 Max Preview is the stronger model overall, scoring 45.3 to 34.3 on the Noometry Index.

### Is Devstral Small 2505 or Qwen3.5 Max Preview better for coding?

Qwen3.5 Max Preview scores higher on coding benchmarks: 44.0 versus 38.9 in the Noometry coding category.

### How many benchmarks do Devstral Small 2505 and Qwen3.5 Max Preview share?

0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Qwen3.5 Max Preview has 17.