Model comparison
Mercury 2 vs Muse Glimmer
Muse Glimmer is the stronger model overall, scoring 41.7 to 39.1 on the Noometry Index.
Last verified . 14 shared benchmarks.
MetaSummary
- They share 14 benchmarks with published results for both. Mercury 2 scores higher in 0 categories and Muse Glimmer in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where Muse Glimmer leads 40.4 to 33.5.
- The biggest single-benchmark swing is SciCode: 38.7% for Mercury 2 and 44.9% for Muse Glimmer.
- Muse Glimmer has downloadable open weights; the other is API-only.
Side by side
| Mercury 2 | Muse Glimmer | |
|---|---|---|
| Provider | Inception | Meta |
| Noometry Index | 39.1 | 41.7 |
| Released | 2026-02-20 | 2026-08-10 |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 50K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $0.75 | — |
| Results tracked | 17 | 15 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Muse Glimmer leads
Mercury 2: 33.5 (#255), Muse Glimmer: 40.4 (#142)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena WebDev | 1171 | 1355 |
| SciCode | 38.7% | 44.9% |
| LMArena Coding | 1391 | 1416 |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
Reasoning Muse Glimmer leads
Mercury 2: 23.8 (#170), Muse Glimmer: 25.7 (#144)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| CritPt | 0.8% | 2.6% |
| LMArena Hard Prompts | 1362 | 1396 |
Math Not comparable
Mercury 2: —, Muse Glimmer: 38.8 (#125)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Math | — | 1417 |
Knowledge Muse Glimmer leads
Mercury 2: 36.2 (#172), Muse Glimmer: 38.5 (#143)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Expert | 1358 | 1386 |
| Vectara Hallucination Rate | 12.3% | — |
Multilingual Muse Glimmer leads
Mercury 2: 46.6 (#157), Muse Glimmer: 50.5 (#122)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Non-English | 1331 | 1384 |
| LMArena Chinese | 1417 | 1412 |
| LMArena Russian | 1304 | 1390 |
Instruction Following Muse Glimmer leads
Mercury 2: 70.2 (#165), Muse Glimmer: 72.6 (#135)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | 1329 | 1375 |
Long Context Muse Glimmer leads
Mercury 2: 40.5 (#154), Muse Glimmer: 42.1 (#129)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | 1330 | 1382 |
Writing & Preference Muse Glimmer leads
Mercury 2: 53.8 (#155), Muse Glimmer: 57.5 (#126)
| Benchmark | Mercury 2 | Muse Glimmer |
|---|---|---|
| LMArena Text | 1355 | 1389 |
| LMArena Creative Writing | 1289 | 1339 |
| LMArena Multi-Turn | 1358 | 1399 |
Frequently asked questions
Is Mercury 2 better than Muse Glimmer?
Muse Glimmer is the stronger model overall, scoring 41.7 to 39.1 on the Noometry Index.
Is Mercury 2 or Muse Glimmer better for coding?
Muse Glimmer scores higher on coding benchmarks: 40.4 versus 33.5 in the Noometry coding category.
How many benchmarks do Mercury 2 and Muse Glimmer share?
14 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Muse Glimmer has 15.