# Mistral Medium 3.5 vs Muse Spark 1.2

> Muse Spark 1.2 is the stronger model overall, scoring 49.8 to 39.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-medium-3-5-vs-muse-spark-1-2
- Last updated: 2026-10-10
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. Mistral Medium 3.5 scores higher in 0 categories and Muse Spark 1.2 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 50.4 to 16.6.
- The biggest single-benchmark swing is NYT Connections (extended): 12.9% for Mistral Medium 3.5 and 79.2% for Muse Spark 1.2.
- Muse Spark 1.2 is cheaper at $1.25 / $4.25 per million input/output tokens, against $1.50 / $7.50 for Mistral Medium 3.5.
- Muse Spark 1.2 accepts more context: 1.05M tokens versus 262K.
- Mistral Medium 3.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| Provider | Mistral AI | Meta |
| Noometry Index | 39.6 | 49.8 |
| Rank | 151 | 44 |
| Context | 262K | 1.05M |
| Input $/M | $1.50 | $1.25 |
| Output $/M | $7.50 | $4.25 |
| Weights | Open | Proprietary |

## Coding

- Mistral Medium 3.5: 35.7 (#208)
- Muse Spark 1.2: 48.6 (#49)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena WebDev | 1263 | 1532 |
| LMArena Coding | 1461 | 1497 |
| DeepSWE | — | 54.9% |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| WeirdML | — | 60.3% |

## Agentic & Tool Use

- Mistral Medium 3.5: —
- Muse Spark 1.2: 29.5 (#77)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| GDP.pdf | — | 16% |

## Reasoning

- Mistral Medium 3.5: 16.6 (#290)
- Muse Spark 1.2: 50.4 (#32)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| NYT Connections (extended) | 12.9% | 79.2% |
| LMArena Hard Prompts | 1436 | 1490 |
| Epoch Capabilities Index | 141.42 | 155.18 |
| SimpleBench | — | 74.5% |
| Kagi LLM Benchmark | 41.4% | — |
| CritPt | — | 17.7% |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |

## Math

- Mistral Medium 3.5: 36.4 (#113)
- Muse Spark 1.2: 43.8 (#68)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| ProofBench | — | 43% |
| LMArena Math | 1432 | — |

## Knowledge

- Mistral Medium 3.5: 39.3 (#123)
- Muse Spark 1.2: 53.9 (#49)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Expert | 1431 | 1485 |
| SimpleQA Verified | — | 60.3% |

## Multimodal

- Mistral Medium 3.5: 37.6 (#64)
- Muse Spark 1.2: 42.6 (#24)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | 1222 | 1304 |

## Multilingual

- Mistral Medium 3.5: 52.1 (#93)
- Muse Spark 1.2: 57.4 (#10)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1405 | 1479 |
| LMArena Chinese | 1443 | 1519 |
| LMArena Russian | 1396 | 1494 |
| LMArena French | 1448 | — |
| LMArena German | 1453 | — |
| LMArena Korean | 1387 | — |
| LMArena Spanish | 1406 | — |

## Instruction Following

- Mistral Medium 3.5: 74.7 (#87)
- Muse Spark 1.2: 77.1 (#30)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1414 | 1466 |

## Long Context

- Mistral Medium 3.5: 43.2 (#101)
- Muse Spark 1.2: 45.4 (#35)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1414 | 1483 |

## Writing & Preference

- Mistral Medium 3.5: 58.6 (#113)
- Muse Spark 1.2: 72.6 (#14)

| Benchmark | Mistral Medium 3.5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1421 | 1486 |
| LMArena Creative Writing | 1372 | 1444 |
| LMArena Multi-Turn | 1423 | 1504 |
| EQ-Bench Creative Writing | — | 1840 |
| EQ-Bench 4 | 993 | — |

## FAQ

### Is Mistral Medium 3.5 better than Muse Spark 1.2?

Muse Spark 1.2 is the stronger model overall, scoring 49.8 to 39.6 on the Noometry Index.

### Which is cheaper, Mistral Medium 3.5 or Muse Spark 1.2?

Muse Spark 1.2 is cheaper. It lists at $1.25 per million input tokens and $4.25 per million output tokens; Mistral Medium 3.5 lists at $1.50 and $7.50.

### Is Mistral Medium 3.5 or Muse Spark 1.2 better for coding?

Muse Spark 1.2 scores higher on coding benchmarks: 48.6 versus 35.7 in the Noometry coding category.

### Which has the bigger context window?

Muse Spark 1.2 does, with 1.05M tokens against 262K.

### How many benchmarks do Mistral Medium 3.5 and Muse Spark 1.2 share?

15 benchmarks have published results for both models. Mistral Medium 3.5 has 22 scored results on Noometry and Muse Spark 1.2 has 28.