Grok 4.1 vs Muse Spark
Grok 4.1 
Muse Spark Verdict
- Muse Spark leads on quality: 65.2 vs 57.4.
- Grok 4.1 (thinking) is stronger in agents & tools.
- Muse Spark is stronger in coding, human preference, knowledge, maths, multimodal, reasoning, instruction following.
| Metric | Grok 4.1 (thinking) | Muse Spark |
|---|---|---|
| BenchLeader Index | 57.4 | 65.2 |
| Agents & tools score | 78.3 | 62.9 |
| Coding score | 47.5 | 66.2 |
| Human preference score | 66.4 | 69.2 |
| Knowledge score | 57.2 | 63.8 |
| Maths score | 48.3 | 56.4 |
| Multimodal score | 53.2 | 66.7 |
| Reasoning score | 58.9 | 70.2 |
| Instruction following score | – | 83.8 |
| Blended price $/M | $1.56 | – |
| Context window | 2M | – |
| GPQA Diamond | – | 89.8% |
| OTIS Mock AIME | – | 88.9% |
| Humanity's Last Exam | – | 40.6% |
| SimpleBench | 56.0% | – |
| SciCode | – | 51.5% |
| ProofBench | 4.0% | 17.0% |
| Epoch Capabilities Index | – | 152.1 |
| LMArena Text | 1465 | 1488 |
| LMArena Hard Prompts | 1477 | 1505 |
| LMArena Coding | 1499 | 1526 |
| LMArena WebDev | 1240 | – |
| LMArena Vision | 1199 | 1306 |
| AIME (Vals) | 91.9% | 96.9% |
| LiveCodeBench | 80.6% | – |
| MMLU-Pro | 84.2% | 87.3% |
| LegalBench | 82.5% | 84.2% |
| CorpFin | 66.0% | 65.1% |
| TaxEval | 73.1% | 77.7% |
| MedQA | 92.1% | – |
| MGSM | 89.5% | – |
| SWE-bench (Vals) | 41.4% | 74.4% |
| GPQA Diamond (Vals) | 84.3% | 89.7% |
| AIME 2026 | 94.2% | – |
| HMMT February 2026 | 86.4% | – |
| MathArena Apex | 5.2% | – |
| SWE-Bench Pro | – | 55.0% |
| MCP Atlas | – | 82.2% |
| MultiChallenge | – | 75.5% |
| PRBench Finance | – | 52.4% |
| PRBench Legal | – | 52.3% |
| MultiNRC | – | 59.0% |
| TutorBench | – | 68.5% |
| BFCL Overall | 69.6% | – |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
Grok 4.1 vs Muse Spark: questions
- Is Grok 4.1 better than Muse Spark?
- Muse Spark leads on quality: 65.2 vs 57.4. The BenchLeader Index combines every independent quality benchmark; Muse Spark is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is Grok 4.1 better than Muse Spark for coding?
- Muse Spark scores higher in coding (66 vs 48 on the category index, where 50 is average).
- Is Grok 4.1 better than Muse Spark for agentic tasks?
- Grok 4.1 scores higher in agentic tasks (78 vs 63 on the category index, where 50 is average).