# Devstral Small 2505 vs Muse Spark

> Muse Spark is the stronger model overall, scoring 50.6 to 34.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-muse-spark
- Last updated: 2026-10-11
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Devstral Small 2505 scores higher in 0 categories and Muse Spark in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark leads 35.9 to 19.7.
- The biggest single-benchmark swing is SciCode: 28.8% for Devstral Small 2505 and 51.5% for Muse Spark.
- Devstral Small 2505 has downloadable open weights; the other is API-only.

## Snapshot

| | Devstral Small 2505 | Muse Spark |
|---|---|---|
| Provider | Mistral AI | Meta |
| Noometry Index | 34.3 | 50.6 |
| Rank | 233 | 46 |
| Context | 128K | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.30 | — |
| Weights | Open | Proprietary |

## Coding

- Devstral Small 2505: 38.9 (#166)
- Muse Spark: 46.2 (#69)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| SciCode | 28.8% | 51.5% |
| SWE-bench Verified (bash only) | 56.4% | — |
| LMArena Coding | — | 1481 |

## Reasoning

- Devstral Small 2505: 19.7 (#252)
- Muse Spark: 35.9 (#67)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| CritPt | 0% | 11.3% |
| Kagi LLM Benchmark | 37.7% | — |
| LMArena Hard Prompts | — | 1474 |
| Epoch Capabilities Index | — | 152.04 |

## Math

- Devstral Small 2505: —
- Muse Spark: 47.8 (#66)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 17% |
| LMArena Math | — | 1455 |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- Devstral Small 2505: —
- Muse Spark: 65.7 (#13)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| GPQA Diamond | — | 89.8% |
| Humanity's Last Exam | — | 40.6% |
| LMArena Expert | — | 1457 |

## Multimodal

- Devstral Small 2505: —
- Muse Spark: 43.4 (#24)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| LMArena Vision | — | 1306 |
| LMArena Document | — | 1444 |

## Multilingual

- Devstral Small 2505: —
- Muse Spark: 56.1 (#24)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| LMArena Non-English | — | 1464 |
| LMArena Chinese | — | 1509 |
| LMArena French | — | 1497 |
| LMArena German | — | 1497 |
| LMArena Korean | — | 1459 |
| LMArena Russian | — | 1466 |
| LMArena Spanish | — | 1472 |

## Instruction Following

- Devstral Small 2505: —
- Muse Spark: 75.9 (#51)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | — | 1442 |

## Long Context

- Devstral Small 2505: —
- Muse Spark: 44.4 (#69)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| LMArena Longer Query | — | 1451 |

## Writing & Preference

- Devstral Small 2505: —
- Muse Spark: 66.0 (#39)

| Benchmark | Devstral Small 2505 | Muse Spark |
|---|---|---|
| LMArena Text | — | 1474 |
| LMArena Creative Writing | — | 1459 |
| LMArena Multi-Turn | — | 1477 |

## FAQ

### Is Devstral Small 2505 better than Muse Spark?

Muse Spark is the stronger model overall, scoring 50.6 to 34.3 on the Noometry Index.

### Is Devstral Small 2505 or Muse Spark better for coding?

Muse Spark scores higher on coding benchmarks: 46.2 versus 38.9 in the Noometry coding category.

### How many benchmarks do Devstral Small 2505 and Muse Spark share?

2 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Muse Spark has 27.