# Devstral Small 2505 vs Qwen3-Coder 480B-A35B Instruct

> Qwen3-Coder 480B-A35B Instruct is the stronger model overall, scoring 38.1 to 34.3 on the Noometry Index. Devstral Small 2505 costs 20× less per token, which makes it the better buy when Qwen3-Coder 480B-A35B Instruct's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/devstral-small-vs-qwen3-coder-480b-a35b-instruct
- Last updated: 2026-10-11
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Devstral Small 2505 scores higher in 1 category and Qwen3-Coder 480B-A35B Instruct in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3-Coder 480B-A35B Instruct leads 25.5 to 19.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 37.7% for Devstral Small 2505 and 49.5% for Qwen3-Coder 480B-A35B Instruct.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $1.50 / $7.50 for Qwen3-Coder 480B-A35B Instruct.
- Qwen3-Coder 480B-A35B Instruct accepts more context: 262K tokens versus 128K.

## Snapshot

| | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 34.3 | 38.1 |
| Rank | 233 | 190 |
| Context | 128K | 262K |
| Input $/M | $0.10 | $1.50 |
| Output $/M | $0.30 | $7.50 |
| Weights | Open | Open |

## Coding

- Devstral Small 2505: 38.9 (#166)
- Qwen3-Coder 480B-A35B Instruct: 35.5 (#223)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | 55.4% |
| LMArena WebDev | — | 1275 |
| SciCode | 28.8% | — |
| GSO | — | 4.9% |
| WeirdML | — | 41.2% |
| LMArena Coding | — | 1412 |
| ALE-Bench | — | 461.45 |
| AlgoTune | — | 1.44 |

## Agentic & Tool Use

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 23.9 (#123)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Terminal-Bench | — | 27.2% |

## Reasoning

- Devstral Small 2505: 19.7 (#252)
- Qwen3-Coder 480B-A35B Instruct: 25.5 (#149)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | 49.5% |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1372 |

## Math

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 37.6 (#150)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Math | — | 1365 |

## Knowledge

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 37.0 (#162)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Expert | — | 1338 |

## Multilingual

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 47.7 (#148)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Non-English | — | 1346 |
| LMArena Chinese | — | 1357 |
| LMArena French | — | 1398 |
| LMArena German | — | 1325 |
| LMArena Japanese | — | 1310 |
| LMArena Korean | — | 1305 |
| LMArena Russian | — | 1366 |
| LMArena Spanish | — | 1360 |

## Instruction Following

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 71.6 (#147)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Instruction Following | — | 1355 |

## Long Context

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 42.0 (#131)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Longer Query | — | 1378 |

## Writing & Preference

- Devstral Small 2505: —
- Qwen3-Coder 480B-A35B Instruct: 55.3 (#147)

| Benchmark | Devstral Small 2505 | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Text | — | 1357 |
| LMArena Creative Writing | — | 1333 |
| LMArena Multi-Turn | — | 1365 |

## FAQ

### Is Devstral Small 2505 better than Qwen3-Coder 480B-A35B Instruct?

Qwen3-Coder 480B-A35B Instruct is the stronger model overall, scoring 38.1 to 34.3 on the Noometry Index. Devstral Small 2505 costs 20× less per token, which makes it the better buy when Qwen3-Coder 480B-A35B Instruct's lead doesn't matter for your workload.

### Which is cheaper, Devstral Small 2505 or Qwen3-Coder 480B-A35B Instruct?

Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Qwen3-Coder 480B-A35B Instruct lists at $1.50 and $7.50.

### Is Devstral Small 2505 or Qwen3-Coder 480B-A35B Instruct better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 35.5 in the Noometry coding category.

### Which has the bigger context window?

Qwen3-Coder 480B-A35B Instruct does, with 262K tokens against 128K.

### How many benchmarks do Devstral Small 2505 and Qwen3-Coder 480B-A35B Instruct share?

2 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Qwen3-Coder 480B-A35B Instruct has 25.