# Devstral Small 2505 vs Mixtral 8x22B

> Devstral Small 2505 is the stronger model overall, scoring 33.9 to 26.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-mixtral-8x22b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Devstral Small 2505 leads 38.6 to 23.8.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $2 / $6 for Mixtral 8x22B.
- Devstral Small 2505 accepts more context: 128K tokens versus 64K.

## Snapshot

| | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 33.9 | 26.7 |
| Rank | 228 | 330 |
| Context | 128K | 64K |
| Input $/M | $0.10 | $2 |
| Output $/M | $0.30 | $6 |
| Weights | Open | Open |

## Coding

- Devstral Small 2505: 38.6 (#160)
- Mixtral 8x22B: 23.8 (#324)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| WeirdML | — | 3.2% |
| BigCodeBench Instruct | — | 40.6% |
| LMArena Coding | — | 1166 |
| BigCodeBench Complete | — | 50.2% |
| HumanEval+ | — | 72% |
| MBPP+ | — | 64.3% |

## Agentic & Tool Use

- Devstral Small 2505: —
- Mixtral 8x22B: 22.8 (#119)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| Cybench | — | 7.5% |

## Reasoning

- Devstral Small 2505: 19.1 (#243)
- Mixtral 8x22B: 19.1 (#246)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1150 |
| DTBench | — | 55.1% |
| Epoch Capabilities Index | — | 122 |
| ForecastBench | — | 56.3 |

## Math

- Devstral Small 2505: —
- Mixtral 8x22B: 21.2 (#271)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| Omni-MATH | — | 16.3% |
| LMArena Math | — | 1184 |
| MATH Level 5 | — | 24.2% |

## Knowledge

- Devstral Small 2505: —
- Mixtral 8x22B: 15.1 (#288)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| GPQA Diamond | — | 34.1% |
| MMLU-Pro | — | 46% |
| GPQA (HELM) | — | 33.4% |
| LMArena Expert | — | 1113 |
| MMLU | — | 77.8% |

## Multilingual

- Devstral Small 2505: —
- Mixtral 8x22B: 32.9 (#250)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| LMArena Non-English | — | 1128 |
| LMArena Chinese | — | 1116 |
| LMArena French | — | 1165 |
| LMArena German | — | 1141 |
| LMArena Japanese | — | 1037 |
| LMArena Korean | — | 1056 |
| LMArena Russian | — | 1158 |
| LMArena Spanish | — | 1150 |

## Instruction Following

- Devstral Small 2505: —
- Mixtral 8x22B: 57.9 (#261)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| IFEval | — | 72.4% |
| LMArena Instruction Following | — | 1147 |

## Long Context

- Devstral Small 2505: —
- Mixtral 8x22B: 34.6 (#242)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| LMArena Longer Query | — | 1144 |

## Writing & Preference

- Devstral Small 2505: —
- Mixtral 8x22B: 37.1 (#257)

| Benchmark | Devstral Small 2505 | Mixtral 8x22B |
|---|---|---|
| LMArena Text | — | 1162 |
| LMArena Creative Writing | — | 1141 |
| WildBench | — | 71.1% |
| LMArena Multi-Turn | — | 1130 |

## FAQ

### Is Devstral Small 2505 better than Mixtral 8x22B?

Devstral Small 2505 is the stronger model overall, scoring 33.9 to 26.7 on the Noometry Index.

### Which is cheaper, Devstral Small 2505 or Mixtral 8x22B?

Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Mixtral 8x22B lists at $2 and $6.

### Is Devstral Small 2505 or Mixtral 8x22B better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.6 versus 23.8 in the Noometry coding category.

### Which has the bigger context window?

Devstral Small 2505 does, with 128K tokens against 64K.

### How many benchmarks do Devstral Small 2505 and Mixtral 8x22B share?

0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Mixtral 8x22B has 34.