Model comparison
Kimi K3 vs Muse Glimmer
Kimi K3 is the stronger model overall, scoring 59.5 to 41.7 on the Noometry Index.
Last verified . 15 shared benchmarks.
MetaSummary
- They share 15 benchmarks with published results for both. Kimi K3 scores higher in 8 categories and Muse Glimmer in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K3 leads 63.0 to 25.7.
- The biggest single-benchmark swing is CritPt: 23.4% for Kimi K3 and 2.6% for Muse Glimmer.
Side by side
| Kimi K3 | Muse Glimmer | |
|---|---|---|
| Provider | Moonshot AI | Meta |
| Noometry Index | 59.5 | 41.7 |
| Released | 2026-07-16 | 2026-08-10 |
| Weights | Open | Open |
| Context window | 1.05M | — |
| Max output | 1.05M | — |
| Input $ / M tokens | $3 | — |
| Output $ / M tokens | $15 | — |
| Results tracked | 53 | 15 |
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Category by category
Coding Kimi K3 leads
Kimi K3: 61.0 (#10), Muse Glimmer: 40.4 (#142)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena WebDev | 1654 | 1355 |
| SciCode | 59.5% | 44.9% |
| LMArena Coding | 1508 | 1416 |
| DeepSWE | 68.5% | — |
| FrontierCode | 44.2% | — |
| FrontierSWE | 25.9% | — |
| WeirdML | 82.6% | — |
| ALE-Bench | 1,524 | — |
Agentic & Tool Use Not comparable
Kimi K3: 41.8 (#20), Muse Glimmer: —
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| APEX-Agents | 50.6% | — |
| τ²-bench Banking | 37.1% | — |
| PostTrainBench | 32% | — |
| GBAEval | 48.3% | — |
| GDP.pdf | 19% | — |
| Vending-Bench 2 | 5,165 | — |
Reasoning Kimi K3 leads
Kimi K3: 63.0 (#17), Muse Glimmer: 25.7 (#144)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| CritPt | 23.4% | 2.6% |
| LMArena Hard Prompts | 1496 | 1396 |
| ARC-AGI-2 | 60.4% | — |
| SimpleBench | 60.7% | — |
| NYT Connections (extended) | 93.6% | — |
| ARC-AGI-1 | 94.5% | — |
| Chess Puzzles | 39% | — |
| Mystery Game Puzzles | 26% | — |
| DTBench | 91.2% | — |
| LMCA | 52.7% | — |
| Surface Evolver Bench | 95% | — |
| Epoch Capabilities Index | 157.45 | — |
| ForecastBench | 61.1 | — |
Math Kimi K3 leads
Kimi K3: 74.2 (#16), Muse Glimmer: 38.8 (#125)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Math | 1491 | 1417 |
| FrontierMath (Tiers 1-3) | 72.2% | — |
| FrontierMath Tier 4 | 39% | — |
| MathArena Final-Answer Competitions | 87.8% | — |
| OTIS Mock AIME 2024-2025 | 97.2% | — |
| ProofBench | 87% | — |
Knowledge Kimi K3 leads
Kimi K3: 63.2 (#21), Muse Glimmer: 38.5 (#143)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Expert | 1521 | 1386 |
| GPQA Diamond | 93.1% | — |
| SimpleQA Verified | 50.6% | — |
Multimodal Not comparable
Kimi K3: 37.8 (#70), Muse Glimmer: —
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| Blueprint-Bench 2 | 29.5% | — |
| Furniture Assembly | 34.2% | — |
Multilingual Kimi K3 leads
Kimi K3: 56.3 (#21), Muse Glimmer: 50.5 (#122)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Non-English | 1466 | 1384 |
| LMArena Chinese | 1529 | 1412 |
| LMArena Russian | 1482 | 1390 |
| LMArena French | 1491 | — |
| LMArena German | 1488 | — |
| LMArena Japanese | 1487 | — |
| LMArena Korean | 1458 | — |
| LMArena Spanish | 1472 | — |
Instruction Following Kimi K3 leads
Kimi K3: 77.7 (#14), Muse Glimmer: 72.6 (#135)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | 1483 | 1375 |
Long Context Kimi K3 leads
Kimi K3: 45.8 (#29), Muse Glimmer: 42.1 (#129)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | 1494 | 1382 |
Writing & Preference Kimi K3 leads
Kimi K3: 76.6 (#4), Muse Glimmer: 57.5 (#126)
| Benchmark | Kimi K3 | Muse Glimmer |
|---|---|---|
| LMArena Text | 1476 | 1389 |
| LMArena Creative Writing | 1454 | 1339 |
| LMArena Multi-Turn | 1488 | 1399 |
| EQ-Bench Creative Writing | 2082 | — |
| EQ-Bench 4 | 1339 | — |
Frequently asked questions
Is Kimi K3 better than Muse Glimmer?
Kimi K3 is the stronger model overall, scoring 59.5 to 41.7 on the Noometry Index.
Is Kimi K3 or Muse Glimmer better for coding?
Kimi K3 scores higher on coding benchmarks: 61.0 versus 40.4 in the Noometry coding category.
How many benchmarks do Kimi K3 and Muse Glimmer share?
15 benchmarks have published results for both models. Kimi K3 has 53 scored results on Noometry and Muse Glimmer has 15.