# Devstral Small 2505 vs Qwen3.6 Flash

> Qwen3.6 Flash is the stronger model overall, scoring 38.4 to 33.9 on the Noometry Index. Devstral Small 2505 costs 2.8× less per token, which makes it the better buy when Qwen3.6 Flash's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/devstral-small-vs-qwen3-6-flash
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Qwen3.6 Flash leads 28.4 to 19.1.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.19 / $1.13 for Qwen3.6 Flash.
- Qwen3.6 Flash accepts more context: 1M tokens versus 128K.
- Devstral Small 2505 has downloadable open weights; the other is API-only.

## Snapshot

| | Devstral Small 2505 | Qwen3.6 Flash |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 33.9 | 38.4 |
| Rank | 228 | 176 |
| Context | 128K | 1M |
| Input $/M | $0.10 | $0.19 |
| Output $/M | $0.30 | $1.13 |
| Weights | Open | Proprietary |

## Coding

- Devstral Small 2505: 38.6 (#160)
- Qwen3.6 Flash: —

| Benchmark | Devstral Small 2505 | Qwen3.6 Flash |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| ALE-Bench | — | 326.4 |

## Reasoning

- Devstral Small 2505: 19.1 (#243)
- Qwen3.6 Flash: 28.4 (#90)

| Benchmark | Devstral Small 2505 | Qwen3.6 Flash |
|---|---|---|
| SimpleBench | — | 35.2% |
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | — | 20% |
| Mystery Game Puzzles | — | 18% |
| DTBench | — | 77.1% |
| LMCA | — | 31% |
| Epoch Capabilities Index | — | 143.26 |

## Math

- Devstral Small 2505: —
- Qwen3.6 Flash: 38.0 (#88)

| Benchmark | Devstral Small 2505 | Qwen3.6 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 22.5% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 10.3% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- Devstral Small 2505: —
- Qwen3.6 Flash: 42.2 (#90)

| Benchmark | Devstral Small 2505 | Qwen3.6 Flash |
|---|---|---|
| GPQA Diamond | — | 83.3% |
| SimpleQA Verified | — | 15.9% |

## FAQ

### Is Devstral Small 2505 better than Qwen3.6 Flash?

Qwen3.6 Flash is the stronger model overall, scoring 38.4 to 33.9 on the Noometry Index. Devstral Small 2505 costs 2.8× less per token, which makes it the better buy when Qwen3.6 Flash's lead doesn't matter for your workload.

### Which is cheaper, Devstral Small 2505 or Qwen3.6 Flash?

Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Qwen3.6 Flash lists at $0.19 and $1.13.

### Which has the bigger context window?

Qwen3.6 Flash does, with 1M tokens against 128K.

### How many benchmarks do Devstral Small 2505 and Qwen3.6 Flash share?

0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Qwen3.6 Flash has 13.