# Deepseek Coder v2 vs Devstral Small 2505

> Deepseek Coder v2 is the stronger model overall, scoring 35.3 to 33.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-coder-v2-vs-devstral-small
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Deepseek Coder v2 leads 22.6 to 19.1.

## Snapshot

| | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| Provider | DeepSeek | Mistral AI |
| Noometry Index | 35.3 | 33.9 |
| Rank | 217 | 228 |
| Context | — | 128K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Open | Open |

## Coding

- Deepseek Coder v2: 37.5 (#178)
- Devstral Small 2505: 38.6 (#160)

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| SWE-bench Verified (bash only) | — | 56.4% |
| SciCode | — | 28.8% |
| BigCodeBench Instruct | 48.2% | — |
| LMArena Coding | 1251 | — |
| BigCodeBench Complete | 59.7% | — |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |

## Reasoning

- Deepseek Coder v2: 22.6 (#175)
- Devstral Small 2505: 19.1 (#243)

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| Kagi LLM Benchmark | — | 37.7% |
| CritPt | — | 0% |
| LMArena Hard Prompts | 1207 | — |
| WinoGrande | 83.7% | — |

## Math

- Deepseek Coder v2: 32.3 (#188)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Math | 1241 | — |
| GSM8K | 94.5% | — |

## Knowledge

- Deepseek Coder v2: 31.7 (#209)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Expert | 1181 | — |
| ARC (AI2) Challenge | 64.3% | — |

## Multilingual

- Deepseek Coder v2: 36.4 (#235)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Non-English | 1182 | — |
| LMArena Chinese | 1201 | — |
| LMArena French | 1184 | — |
| LMArena German | 1164 | — |
| LMArena Japanese | 1126 | — |
| LMArena Korean | 1104 | — |
| LMArena Russian | 1188 | — |
| LMArena Spanish | 1153 | — |

## Instruction Following

- Deepseek Coder v2: 61.9 (#237)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Instruction Following | 1180 | — |

## Long Context

- Deepseek Coder v2: 37.0 (#219)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Longer Query | 1219 | — |

## Writing & Preference

- Deepseek Coder v2: 38.4 (#249)
- Devstral Small 2505: —

| Benchmark | Deepseek Coder v2 | Devstral Small 2505 |
|---|---|---|
| LMArena Text | 1191 | — |
| LMArena Creative Writing | 1120 | — |
| LMArena Multi-Turn | 1176 | — |

## FAQ

### Is Deepseek Coder v2 better than Devstral Small 2505?

Deepseek Coder v2 is the stronger model overall, scoring 35.3 to 33.9 on the Noometry Index.

### Is Deepseek Coder v2 or Devstral Small 2505 better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.6 versus 37.5 in the Noometry coding category.

### How many benchmarks do Deepseek Coder v2 and Devstral Small 2505 share?

0 benchmarks have published results for both models. Deepseek Coder v2 has 24 scored results on Noometry and Devstral Small 2505 has 4.