# Muse Glimmer vs Step 3.5 Flash

> Muse Glimmer and Step 3.5 Flash score almost the same on the Noometry Index (41.3 vs 41.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/muse-glimmer-vs-step-3-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Muse Glimmer scores higher in 1 category and Step 3.5 Flash in 7 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Glimmer leads 27.2 to 21.2.

## Snapshot

| | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 41.3 | 41.7 |
| Rank | 128 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Open | Open |

## Coding

- Muse Glimmer: 38.7 (#157)
- Step 3.5 Flash: 41.7 (#106)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1417 | 1436 |
| LMArena WebDev | 1355 | — |

## Reasoning

- Muse Glimmer: 27.2 (#111)
- Step 3.5 Flash: 21.2 (#202)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1395 | 1411 |
| NYT Connections (extended) | — | 28.4% |

## Math

- Muse Glimmer: 36.1 (#128)
- Step 3.5 Flash: 40.6 (#77)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1419 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |

## Knowledge

- Muse Glimmer: 37.9 (#140)
- Step 3.5 Flash: 39.0 (#127)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1388 | 1422 |

## Multilingual

- Muse Glimmer: 50.6 (#117)
- Step 3.5 Flash: 50.7 (#115)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1384 | 1386 |
| LMArena Chinese | 1412 | 1448 |
| LMArena Russian | 1393 | 1385 |
| LMArena French | — | 1421 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1353 |
| LMArena Korean | — | 1350 |
| LMArena Spanish | — | 1419 |

## Instruction Following

- Muse Glimmer: 72.7 (#134)
- Step 3.5 Flash: 73.3 (#119)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1374 | 1385 |

## Long Context

- Muse Glimmer: 42.1 (#124)
- Step 3.5 Flash: 42.8 (#112)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1381 | 1402 |

## Writing & Preference

- Muse Glimmer: 57.7 (#122)
- Step 3.5 Flash: 59.0 (#108)

| Benchmark | Muse Glimmer | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1389 | 1403 |
| LMArena Creative Writing | 1338 | 1357 |
| LMArena Multi-Turn | 1398 | 1405 |

## FAQ

### Is Muse Glimmer better than Step 3.5 Flash?

Muse Glimmer and Step 3.5 Flash score almost the same on the Noometry Index (41.3 vs 41.7), so choose on price, context window or the category you care about most.

### Is Muse Glimmer or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 38.7 in the Noometry coding category.

### How many benchmarks do Muse Glimmer and Step 3.5 Flash share?

12 benchmarks have published results for both models. Muse Glimmer has 13 scored results on Noometry and Step 3.5 Flash has 19.