# Muse Spark 1.1 vs Step 3

> Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 39.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/muse-spark-1-1-vs-step-3
- Last updated: 2026-10-10
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Muse Spark 1.1 scores higher in 9 categories and Step 3 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Muse Spark 1.1 leads 73.6 to 54.5.
- Step 3 has downloadable open weights; the other is API-only.

## Snapshot

| | Muse Spark 1.1 | Step 3 |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 49.9 | 39.9 |
| Rank | 43 | 145 |
| Context | 1.05M | — |
| Input $/M | $1.25 | — |
| Output $/M | $4.25 | — |
| Weights | Proprietary | Open |

## Coding

- Muse Spark 1.1: 50.8 (#38)
- Step 3: 39.5 (#144)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Coding | 1497 | 1367 |
| DeepSWE | 53.3% | — |
| LMArena WebDev | 1542 | — |
| SciCode | 58.8% | — |

## Agentic & Tool Use

- Muse Spark 1.1: 33.9 (#45)
- Step 3: —

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| τ²-bench Banking | 40.5% | — |
| GBAEval | 7.9% | — |
| GDP.pdf | 15% | — |
| Vending-Bench 2 | 6,520 | — |

## Reasoning

- Muse Spark 1.1: 45.9 (#41)
- Step 3: 27.6 (#102)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Hard Prompts | 1486 | 1355 |
| Kagi LLM Benchmark | — | 62.3% |
| NYT Connections (extended) | 84.9% | — |
| CritPt | 15.1% | — |
| DTBench | 94.4% | — |
| LMCA | 49.9% | — |
| Surface Evolver Bench | 52.5% | — |
| Epoch Capabilities Index | 154.32 | — |

## Math

- Muse Spark 1.1: 44.0 (#67)
- Step 3: 34.9 (#148)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Math | 1477 | 1366 |
| ProofBench | 39% | — |

## Knowledge

- Muse Spark 1.1: 52.8 (#55)
- Step 3: 36.2 (#161)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Expert | 1480 | 1333 |
| SimpleQA Verified | 57.8% | — |

## Multimodal

- Muse Spark 1.1: 41.9 (#28)
- Step 3: 34.9 (#81)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Vision | 1292 | 1176 |
| LMArena Document | 1465 | — |

## Multilingual

- Muse Spark 1.1: 56.8 (#16)
- Step 3: 46.5 (#154)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Non-English | 1471 | 1327 |
| LMArena Chinese | 1518 | 1396 |
| LMArena German | 1466 | 1371 |
| LMArena Korean | 1459 | 1271 |
| LMArena Russian | 1482 | 1331 |
| LMArena Spanish | 1471 | 1372 |
| LMArena French | 1494 | — |
| LMArena Japanese | 1445 | — |

## Instruction Following

- Muse Spark 1.1: 76.8 (#36)
- Step 3: 70.6 (#159)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1457 | 1332 |

## Long Context

- Muse Spark 1.1: 44.8 (#55)
- Step 3: 40.3 (#152)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Longer Query | 1463 | 1326 |

## Writing & Preference

- Muse Spark 1.1: 73.6 (#11)
- Step 3: 54.5 (#146)

| Benchmark | Muse Spark 1.1 | Step 3 |
|---|---|---|
| LMArena Text | 1479 | 1351 |
| LMArena Creative Writing | 1440 | 1322 |
| LMArena Multi-Turn | 1484 | 1340 |
| EQ-Bench Creative Writing | 1927 | — |
| EQ-Bench 4 | 1260 | — |

## FAQ

### Is Muse Spark 1.1 better than Step 3?

Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 39.9 on the Noometry Index.

### Is Muse Spark 1.1 or Step 3 better for coding?

Muse Spark 1.1 scores higher on coding benchmarks: 50.8 versus 39.5 in the Noometry coding category.

### How many benchmarks do Muse Spark 1.1 and Step 3 share?

16 benchmarks have published results for both models. Muse Spark 1.1 has 36 scored results on Noometry and Step 3 has 17.