Model comparison
Grok 3 vs Muse Glimmer
Muse Glimmer is the stronger model overall, scoring 41.3 to 39.6 on the Noometry Index.
Last verified . 12 shared benchmarks.
MetaSummary
- They share 12 benchmarks with published results for both. Grok 3 scores higher in 5 categories and Muse Glimmer in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Glimmer leads 27.2 to 13.8.
- Muse Glimmer has downloadable open weights; the other is API-only.
Side by side
| Grok 3 | Muse Glimmer | |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 39.6 | 41.3 |
| Released | 2025-04-09 | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 40 | 13 |
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Category by category
Coding Grok 3 leads
Grok 3: 41.5 (#113), Muse Glimmer: 38.7 (#157)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Coding | 1432 | 1417 |
| Aider Polyglot | 53.3% | — |
| LMArena WebDev | — | 1355 |
| WeirdML | 37.2% | — |
Agentic & Tool Use Not comparable
Grok 3: 30.2 (#69), Muse Glimmer: —
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| BALROG | 29.5% | — |
Reasoning Muse Glimmer leads
Grok 3: 13.8 (#322), Muse Glimmer: 27.2 (#111)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Hard Prompts | 1433 | 1395 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 5.5% | — |
| Epoch Capabilities Index | 138.34 | — |
Math Too close to call
Grok 3: 36.2 (#122), Muse Glimmer: 36.1 (#128)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Math | 1390 | 1419 |
| OTIS Mock AIME 2024-2025 | 55.6% | — |
| Omni-MATH | 46.4% | — |
| MATH Level 5 | 88.7% | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Grok 3 leads
Grok 3: 46.0 (#76), Muse Glimmer: 37.9 (#140)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Expert | 1420 | 1388 |
| GPQA Diamond | 75.8% | — |
| MMLU-Pro | 78.8% | — |
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 5.8% | — |
| GPQA (HELM) | 65% | — |
Multilingual Grok 3 leads
Grok 3: 52.5 (#81), Muse Glimmer: 50.6 (#117)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Non-English | 1411 | 1384 |
| LMArena Chinese | 1448 | 1412 |
| LMArena Russian | 1416 | 1393 |
| LMArena French | 1460 | — |
| LMArena German | 1431 | — |
| LMArena Japanese | 1389 | — |
| LMArena Korean | 1374 | — |
| LMArena Spanish | 1417 | — |
Instruction Following Grok 3 leads
Grok 3: 75.2 (#69), Muse Glimmer: 72.7 (#134)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | 1409 | 1374 |
| IFEval | 88.4% | — |
Long Context Muse Glimmer leads
Grok 3: 38.7 (#187), Muse Glimmer: 42.1 (#124)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | 1439 | 1381 |
| Fiction.LiveBench | 58.3% | — |
Writing & Preference Muse Glimmer leads
Grok 3: 56.0 (#136), Muse Glimmer: 57.7 (#122)
| Benchmark | Grok 3 | Muse Glimmer |
|---|---|---|
| LMArena Text | 1426 | 1389 |
| LMArena Creative Writing | 1414 | 1338 |
| LMArena Multi-Turn | 1424 | 1398 |
| Short-Story Creative Writing | 76.4% | — |
| EQ-Bench Creative Writing | 1186 | — |
| WildBench | 84.9% | — |
Frequently asked questions
Is Grok 3 better than Muse Glimmer?
Muse Glimmer is the stronger model overall, scoring 41.3 to 39.6 on the Noometry Index.
Is Grok 3 or Muse Glimmer better for coding?
Grok 3 scores higher on coding benchmarks: 41.5 versus 38.7 in the Noometry coding category.
How many benchmarks do Grok 3 and Muse Glimmer share?
12 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Muse Glimmer has 13.