Grok 4.6 vs Muse Spark 1.2
Grok 4.6 
Muse Spark 1.2 Verdict
- Grok 4.6 (medium) leads on quality: 63.8 vs 62.6.
- Grok 4.6 (medium) is stronger in composite, knowledge, long context.
- Muse Spark 1.2 is stronger in coding, reasoning, maths.
- Muse Spark 1.2 is 1.5× cheaper ($2.00 vs $3.00 per 1M blended).
- Muse Spark 1.2 streams 4.0× faster (219 vs 55 tokens per second).
| Metric | Grok 4.6 (medium) | Muse Spark 1.2 |
|---|---|---|
| BenchLeader Index | 63.8 | 62.6 |
| Coding score | 63.9 | 66.5 |
| Composite score | 83.2 | 79.1 |
| Knowledge score | 77.3 | 76.9 |
| Long context score | 67.1 | 66.0 |
| Reasoning score | 62.1 | 70.2 |
| Maths score | – | 54.3 |
| Blended price $/M | $3.00 | $2.00 |
| Output speed | 55 tok/s | 219 tok/s |
| Time to first answer | 36.7 s | 23.7 s |
| Context window | 500k | 1.0M |
| SimpleBench | – | 74.5% |
| SciCode | 54.6% | – |
| ProofBench | – | 43.0% |
| Epoch Capabilities Index | – | 155.5 |
| AA Intelligence Index | 43.0 | 39.8 |
| AA-LCR | 81.0% | 79.0% |
| AA-Omniscience | 28 | 27.2 |
| GPQA Diamond (AA) | 93.5% | 90.4% |
| Humanity's Last Exam (AA) | 42.1% | 45.5% |
| SciCode (AA) | 55.9% | 57.4% |
| IOI | – | 49.5% |
| ARC-AGI-1 | 87.5% | – |
| ARC-AGI-2 | 61.3% | – |
Data as of 2026-09-09. Best configuration of each model; every score links to its source on the model pages.