# Mistral Small 3.1 vs Muse Spark

> Muse Spark is the stronger model overall, scoring 50.3 to 31.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-small-3-1-vs-muse-spark
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Mistral Small 3.1 scores higher in 0 categories and Muse Spark in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Muse Spark leads 65.7 to 22.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 3.9% for Mistral Small 3.1 and 88.9% for Muse Spark.
- Mistral Small 3.1 has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| Provider | Mistral AI | Meta |
| Noometry Index | 31.4 | 50.3 |
| Rank | 263 | 41 |
| Context | 128K | — |
| Input $/M | $0.35 | — |
| Output $/M | $0.56 | — |
| Weights | Open | Proprietary |

## Coding

- Mistral Small 3.1: 37.7 (#175)
- Muse Spark: 45.6 (#65)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Coding | 1309 | 1482 |
| SciCode | — | 51.5% |

## Reasoning

- Mistral Small 3.1: 18.9 (#249)
- Muse Spark: 34.9 (#61)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Hard Prompts | 1278 | 1475 |
| Epoch Capabilities Index | 127.48 | 152.09 |
| CritPt | — | 11.3% |
| Chess Puzzles | 1% | — |

## Math

- Mistral Small 3.1: 13.7 (#295)
- Muse Spark: 46.8 (#57)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | 88.9% |
| LMArena Math | 1261 | 1455 |
| ProofBench | — | 17% |
| Omni-MATH | 24.8% | — |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- Mistral Small 3.1: 22.6 (#266)
- Muse Spark: 65.7 (#12)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| GPQA Diamond | 41.9% | 89.8% |
| LMArena Expert | 1258 | 1458 |
| Humanity's Last Exam | — | 40.6% |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |

## Multimodal

- Mistral Small 3.1: 32.6 (#93)
- Muse Spark: 42.7 (#23)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Vision | 1136 | 1306 |
| LMArena Document | — | 1444 |

## Multilingual

- Mistral Small 3.1: 41.4 (#204)
- Muse Spark: 56.3 (#23)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Non-English | 1255 | 1464 |
| LMArena Chinese | 1254 | 1507 |
| LMArena French | 1270 | 1497 |
| LMArena German | 1266 | 1497 |
| LMArena Korean | 1206 | 1457 |
| LMArena Russian | 1263 | 1467 |
| LMArena Spanish | 1283 | 1471 |
| LMArena Japanese | 1210 | — |

## Instruction Following

- Mistral Small 3.1: 63.8 (#225)
- Muse Spark: 76.1 (#47)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1264 | 1443 |
| IFEval | 75% | — |

## Long Context

- Mistral Small 3.1: 39.5 (#172)
- Muse Spark: 44.4 (#65)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1300 | 1451 |

## Writing & Preference

- Mistral Small 3.1: 37.2 (#254)
- Muse Spark: 66.2 (#37)

| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Text | 1278 | 1474 |
| LMArena Creative Writing | 1253 | 1460 |
| LMArena Multi-Turn | 1270 | 1477 |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |

## FAQ

### Is Mistral Small 3.1 better than Muse Spark?

Muse Spark is the stronger model overall, scoring 50.3 to 31.4 on the Noometry Index.

### Is Mistral Small 3.1 or Muse Spark better for coding?

Muse Spark scores higher on coding benchmarks: 45.6 versus 37.7 in the Noometry coding category.

### How many benchmarks do Mistral Small 3.1 and Muse Spark share?

20 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and Muse Spark has 27.