Model comparison
Muse Glimmer vs Step 3.7 Flash
Muse Glimmer is the stronger model overall, scoring 41.7 to 37.3 on the Noometry Index.
Last verified . 2 shared benchmarks.
Meta
StepFunSummary
- They share 2 benchmarks with published results for both. Muse Glimmer scores higher in 2 categories and Step 3.7 Flash in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.7 Flash leads 42.9 to 38.8.
Side by side
| Muse Glimmer | Step 3.7 Flash | |
|---|---|---|
| Provider | Meta | StepFun |
| Noometry Index | 41.7 | 37.3 |
| Released | 2026-08-10 | 2026-05-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $1.11 |
| Results tracked | 15 | 5 |
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Category by category
Coding Too close to call
Muse Glimmer: 40.4 (#142), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| SciCode | 44.9% | 40% |
| LMArena WebDev | 1355 | — |
| LMArena Coding | 1416 | — |
| ALE-Bench | — | 694.12 |
Reasoning Muse Glimmer leads
Muse Glimmer: 25.7 (#144), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| CritPt | 2.6% | 2.3% |
| NYT Connections (extended) | — | 39.7% |
| LMArena Hard Prompts | 1396 | — |
Math Step 3.7 Flash leads
Muse Glimmer: 38.8 (#125), Step 3.7 Flash: 42.9 (#82)
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1417 | — |
Knowledge Not comparable
Muse Glimmer: 38.5 (#143), Step 3.7 Flash: —
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1386 | — |
Multilingual Not comparable
Muse Glimmer: 50.5 (#122), Step 3.7 Flash: —
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1384 | — |
| LMArena Chinese | 1412 | — |
| LMArena Russian | 1390 | — |
Instruction Following Not comparable
Muse Glimmer: 72.6 (#135), Step 3.7 Flash: —
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1375 | — |
Long Context Not comparable
Muse Glimmer: 42.1 (#129), Step 3.7 Flash: —
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1382 | — |
Writing & Preference Not comparable
Muse Glimmer: 57.5 (#126), Step 3.7 Flash: —
| Benchmark | Muse Glimmer | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1389 | — |
| LMArena Creative Writing | 1339 | — |
| LMArena Multi-Turn | 1399 | — |
Frequently asked questions
Is Muse Glimmer better than Step 3.7 Flash?
Muse Glimmer is the stronger model overall, scoring 41.7 to 37.3 on the Noometry Index.
Is Muse Glimmer or Step 3.7 Flash better for coding?
They score almost the same on coding (40.4 vs 40.0); test both on your own repository before choosing.
How many benchmarks do Muse Glimmer and Step 3.7 Flash share?
2 benchmarks have published results for both models. Muse Glimmer has 15 scored results on Noometry and Step 3.7 Flash has 5.