Model comparison
Mistral Small 3.1 vs Muse Spark
Muse Spark is the stronger model overall, scoring 50.6 to 31.7 on the Noometry Index.
Last verified . 20 shared benchmarks.
Mistral AI
MetaSummary
- 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.
Side by side
| Mistral Small 3.1 | Muse Spark | |
|---|---|---|
| Provider | Mistral AI | Meta |
| Noometry Index | 31.7 | 50.6 |
| Released | 2025-03-17 | 2026-04-08 |
| Weights | Open | Proprietary |
| Context window | 128K | — |
| Max output | 102K | — |
| Input $ / M tokens | $0.35 | — |
| Output $ / M tokens | $0.56 | — |
| Results tracked | 28 | 27 |
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Category by category
Coding Muse Spark leads
Mistral Small 3.1: 38.3 (#179), Muse Spark: 46.2 (#69)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Coding | 1309 | 1481 |
| SciCode | — | 51.5% |
Reasoning Muse Spark leads
Mistral Small 3.1: 19.7 (#254), Muse Spark: 35.9 (#67)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Hard Prompts | 1278 | 1474 |
| Epoch Capabilities Index | 127.48 | 152.04 |
| CritPt | — | 11.3% |
| Chess Puzzles | 1% | — |
Math Muse Spark leads
Mistral Small 3.1: 14.7 (#301), Muse Spark: 47.8 (#66)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 3.9% | 88.9% |
| LMArena Math | 1262 | 1455 |
| ProofBench | — | 17% |
| Omni-MATH | 24.8% | — |
| FrontierMath (Feb 2025 set) | — | 39% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Muse Spark leads
Mistral Small 3.1: 22.6 (#271), Muse Spark: 65.7 (#13)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| GPQA Diamond | 41.9% | 89.8% |
| LMArena Expert | 1257 | 1457 |
| Humanity's Last Exam | — | 40.6% |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
Multimodal Muse Spark leads
Mistral Small 3.1: 33.2 (#99), Muse Spark: 43.4 (#24)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Vision | 1136 | 1306 |
| LMArena Document | — | 1444 |
Multilingual Muse Spark leads
Mistral Small 3.1: 41.2 (#209), Muse Spark: 56.1 (#24)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Non-English | 1255 | 1464 |
| LMArena Chinese | 1253 | 1509 |
| LMArena French | 1273 | 1497 |
| LMArena German | 1266 | 1497 |
| LMArena Korean | 1206 | 1459 |
| LMArena Russian | 1263 | 1466 |
| LMArena Spanish | 1283 | 1472 |
| LMArena Japanese | 1208 | — |
Instruction Following Muse Spark leads
Mistral Small 3.1: 63.6 (#230), Muse Spark: 75.9 (#51)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Instruction Following | 1264 | 1442 |
| IFEval | 75% | — |
Long Context Muse Spark leads
Mistral Small 3.1: 39.5 (#178), Muse Spark: 44.4 (#69)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Longer Query | 1299 | 1451 |
Writing & Preference Muse Spark leads
Mistral Small 3.1: 37.0 (#259), Muse Spark: 66.0 (#39)
| Benchmark | Mistral Small 3.1 | Muse Spark |
|---|---|---|
| LMArena Text | 1277 | 1474 |
| LMArena Creative Writing | 1253 | 1459 |
| LMArena Multi-Turn | 1270 | 1477 |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |
Frequently asked questions
Is Mistral Small 3.1 better than Muse Spark?
Muse Spark is the stronger model overall, scoring 50.6 to 31.7 on the Noometry Index.
Is Mistral Small 3.1 or Muse Spark better for coding?
Muse Spark scores higher on coding benchmarks: 46.2 versus 38.3 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.