Model comparison
Hy4 preview vs Muse Glimmer
Hy4 preview is the stronger model overall, scoring 45.3 to 41.7 on the Noometry Index.
Last verified . 1 shared benchmarks.
Tencent
MetaSummary
- They share 1 benchmark with published results for both. Hy4 preview scores higher in 3 categories and Muse Glimmer in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 38.8.
Side by side
| Hy4 preview | Muse Glimmer | |
|---|---|---|
| Provider | Tencent | Meta |
| Noometry Index | 45.3 | 41.7 |
| Released | 2026-08-28 | 2026-08-10 |
| Weights | Open | Open |
| Context window | 1.05M | — |
| Max output | 64K | — |
| Input $ / M tokens | $0.75 | — |
| Output $ / M tokens | $2.25 | — |
| Results tracked | 3 | 15 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.6 (#38), Muse Glimmer: 40.4 (#142)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena WebDev | 1632 | 1355 |
| SciCode | — | 44.9% |
| LMArena Coding | — | 1416 |
Reasoning Hy4 preview leads
Hy4 preview: 31.9 (#79), Muse Glimmer: 25.7 (#144)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| CritPt | — | 2.6% |
| LMArena Hard Prompts | — | 1396 |
Math Hy4 preview leads
Hy4 preview: 55.7 (#42), Muse Glimmer: 38.8 (#125)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1417 |
Knowledge Not comparable
Hy4 preview: —, Muse Glimmer: 38.5 (#143)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena Expert | — | 1386 |
Multilingual Not comparable
Hy4 preview: —, Muse Glimmer: 50.5 (#122)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena Non-English | — | 1384 |
| LMArena Chinese | — | 1412 |
| LMArena Russian | — | 1390 |
Instruction Following Not comparable
Hy4 preview: —, Muse Glimmer: 72.6 (#135)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | — | 1375 |
Long Context Not comparable
Hy4 preview: —, Muse Glimmer: 42.1 (#129)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | — | 1382 |
Writing & Preference Not comparable
Hy4 preview: —, Muse Glimmer: 57.5 (#126)
| Benchmark | Hy4 preview | Muse Glimmer |
|---|---|---|
| LMArena Text | — | 1389 |
| LMArena Creative Writing | — | 1339 |
| LMArena Multi-Turn | — | 1399 |
Frequently asked questions
Is Hy4 preview better than Muse Glimmer?
Hy4 preview is the stronger model overall, scoring 45.3 to 41.7 on the Noometry Index.
Is Hy4 preview or Muse Glimmer better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 40.4 in the Noometry coding category.
How many benchmarks do Hy4 preview and Muse Glimmer share?
1 benchmark has published results for both models. Hy4 preview has 3 scored results on Noometry and Muse Glimmer has 15.