Model comparison
Kimi K2.5 Instant vs Muse Glimmer
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 41.7 on the Noometry Index.
Last verified . 13 shared benchmarks.
MetaSummary
- They share 13 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 8 categories and Muse Glimmer in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 29.7 to 25.7.
Side by side
| Kimi K2.5 Instant | Muse Glimmer | |
|---|---|---|
| Provider | Moonshot AI | Meta |
| Noometry Index | 43.6 | 41.7 |
| Released | — | 2026-08-10 |
| Weights | Open | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 15 |
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Category by category
Coding Kimi K2.5 Instant leads
Kimi K2.5 Instant: 42.6 (#97), Muse Glimmer: 40.4 (#142)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena WebDev | 1404 | 1355 |
| LMArena Coding | 1484 | 1416 |
| SciCode | — | 44.9% |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 29.7 (#90), Muse Glimmer: 25.7 (#144)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1396 |
| CritPt | — | 2.6% |
Math Too close to call
Kimi K2.5 Instant: 39.4 (#105), Muse Glimmer: 38.8 (#125)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Math | 1442 | 1417 |
Knowledge Kimi K2.5 Instant leads
Kimi K2.5 Instant: 40.2 (#123), Muse Glimmer: 38.5 (#143)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Expert | 1440 | 1386 |
Multimodal Not comparable
Kimi K2.5 Instant: 40.2 (#50), Muse Glimmer: —
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Kimi K2.5 Instant leads
Kimi K2.5 Instant: 52.0 (#94), Muse Glimmer: 50.5 (#122)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Non-English | 1406 | 1384 |
| LMArena Chinese | 1449 | 1412 |
| LMArena Russian | 1404 | 1390 |
| LMArena French | 1403 | — |
| LMArena German | 1413 | — |
| LMArena Korean | 1378 | — |
| LMArena Spanish | 1447 | — |
Instruction Following Kimi K2.5 Instant leads
Kimi K2.5 Instant: 75.3 (#65), Muse Glimmer: 72.6 (#135)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | 1430 | 1375 |
Long Context Kimi K2.5 Instant leads
Kimi K2.5 Instant: 43.9 (#83), Muse Glimmer: 42.1 (#129)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | 1435 | 1382 |
Writing & Preference Kimi K2.5 Instant leads
Kimi K2.5 Instant: 60.6 (#95), Muse Glimmer: 57.5 (#126)
| Benchmark | Kimi K2.5 Instant | Muse Glimmer |
|---|---|---|
| LMArena Text | 1420 | 1389 |
| LMArena Creative Writing | 1381 | 1339 |
| LMArena Multi-Turn | 1427 | 1399 |
Frequently asked questions
Is Kimi K2.5 Instant better than Muse Glimmer?
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 41.7 on the Noometry Index.
Is Kimi K2.5 Instant or Muse Glimmer better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 40.4 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and Muse Glimmer share?
13 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Muse Glimmer has 15.