Model comparison
Grok 4.1 vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 41.5 on the Noometry Index.
Last verified . 15 shared benchmarks.
MetaSummary
- They share 15 benchmarks with published results for both. Grok 4.1 scores higher in 1 category and Muse Spark 1.2 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 29.5.
Side by side
| Grok 4.1 | Muse Spark 1.2 | |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 41.5 | 50.3 |
| Released | 2025-11-17 | 2026-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $4.25 |
| Results tracked | 19 | 31 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Muse Spark 1.2 leads
Grok 4.1: 33.7 (#253), Muse Spark 1.2: 49.2 (#51)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena WebDev | 1214 | 1533 |
| LMArena Coding | 1445 | 1495 |
| DeepSWE | — | 54.9% |
| FrontierSWE | — | 12% |
| SciCode | — | 56.4% |
| WeirdML | — | 60.3% |
Agentic & Tool Use Grok 4.1 leads
Grok 4.1: 34.1 (#49), Muse Spark 1.2: 29.4 (#87)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| Cybench | 39% | — |
| GDP.pdf | — | 16% |
Reasoning Muse Spark 1.2 leads
Grok 4.1: 29.5 (#91), Muse Spark 1.2: 51.3 (#34)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Hard Prompts | 1435 | 1486 |
| SimpleBench | — | 74.5% |
| NYT Connections (extended) | — | 79.2% |
| CritPt | — | 17.7% |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |
| Epoch Capabilities Index | — | 154.87 |
Math Muse Spark 1.2 leads
Grok 4.1: 38.9 (#120), Muse Spark 1.2: 46.4 (#70)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Math | 1422 | 1471 |
| ProofBench | — | 43% |
Knowledge Muse Spark 1.2 leads
Grok 4.1: 39.5 (#133), Muse Spark 1.2: 54.1 (#53)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Expert | 1417 | 1480 |
| SimpleQA Verified | — | 60.3% |
Multimodal Not comparable
Grok 4.1: —, Muse Spark 1.2: 43.4 (#25)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | — | 1305 |
Multilingual Muse Spark 1.2 leads
Grok 4.1: 53.4 (#68), Muse Spark 1.2: 57.1 (#11)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1425 | 1478 |
| LMArena Chinese | 1465 | 1511 |
| LMArena French | 1448 | 1513 |
| LMArena Russian | 1434 | 1487 |
| LMArena Spanish | 1438 | 1498 |
| LMArena German | 1446 | — |
| LMArena Japanese | 1397 | — |
| LMArena Korean | 1407 | — |
Instruction Following Muse Spark 1.2 leads
Grok 4.1: 73.8 (#111), Muse Spark 1.2: 76.7 (#36)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1400 | 1461 |
Long Context Muse Spark 1.2 leads
Grok 4.1: 43.2 (#100), Muse Spark 1.2: 45.2 (#48)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1416 | 1475 |
Writing & Preference Muse Spark 1.2 leads
Grok 4.1: 62.4 (#75), Muse Spark 1.2: 72.3 (#14)
| Benchmark | Grok 4.1 | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1437 | 1482 |
| LMArena Creative Writing | 1411 | 1449 |
| LMArena Multi-Turn | 1437 | 1494 |
| EQ-Bench Creative Writing | — | 1840 |
Frequently asked questions
Is Grok 4.1 better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 41.5 on the Noometry Index.
Is Grok 4.1 or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 33.7 in the Noometry coding category.
How many benchmarks do Grok 4.1 and Muse Spark 1.2 share?
15 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and Muse Spark 1.2 has 31.