Grok 4 vs Muse Spark 1.2
Grok 4 
Muse Spark 1.2 Verdict
- Grok 4 and Muse Spark 1.2 (xhigh) are level on quality (59.8 vs 60.7).
- Grok 4 is stronger in agents & tools, coding, instruction following, long context, maths.
- Muse Spark 1.2 (xhigh) is stronger in human preference, knowledge, multimodal, reasoning, composite.
- Grok 4 is 1.3× cheaper ($1.56 vs $2.00 per 1M blended).
| Metric | Grok 4 | Muse Spark 1.2 (xhigh) |
|---|---|---|
| BenchLeader Index | 59.8 | 60.7 |
| Agents & tools score | 53.4 | 50.3 |
| Coding score | 61.2 | 56.7 |
| Human preference score | 59.8 | 70.6 |
| Instruction following score | 67.7 | – |
| Knowledge score | 56.0 | 65.2 |
| Long context score | 77.7 | – |
| Maths score | 58.0 | – |
| Multimodal score | 54.5 | 66.4 |
| Reasoning score | 58.3 | 69.3 |
| Composite score | – | 60.4 |
| Blended price $/M | $1.56 | $2.00 |
| Output speed | – | 184 tok/s |
| Time to first answer | – | 24.9 s |
| Context window | 256k | 1.0M |
| GPQA Diamond | 87.0% | – |
| OTIS Mock AIME | 84.0% | – |
| SimpleQA Verified | – | 60.3% |
| Terminal-Bench | 27.2% | – |
| SimpleBench | 60.5% | – |
| Fiction.LiveBench 120k | 96.9% | – |
| SciCode | – | 56.4% |
| Cybench | 43.0% | – |
| WeirdML | 45.7% | 60.3% |
| APEX-Agents | 15.2% | – |
| Epoch Capabilities Index | 146.4 | – |
| LMArena Text | 1411 | 1499 |
| LMArena Hard Prompts | 1420 | 1513 |
| LMArena Coding | 1435 | 1535 |
| LMArena WebDev | – | 1534 |
| LMArena Vision | 1210 | 1304 |
| LMArena Agent | – | -1.8 |
| LiveBench | – | 78.0% |
| LiveBench Reasoning | – | 90.0% |
| LiveBench Coding | – | 77.5% |
| LiveBench Agentic Coding | – | 57.6% |
| LiveBench Mathematics | – | 91.2% |
| LiveBench Data Analysis | – | 76.5% |
| LiveBench Language | – | 78.6% |
| AIME (Vals) | 90.6% | – |
| LiveCodeBench | 83.3% | – |
| MMLU-Pro | 85.3% | 88.3% |
| IOI | – | 21.8% |
| LegalBench | 83.2% | 85.3% |
| CorpFin | 66.0% | 70.9% |
| TaxEval | 65.1% | 80.4% |
| MedQA | 92.5% | – |
| MGSM | 90.9% | – |
| Terminal-Bench 2.1 (Vals) | – | 69.7% |
| SWE-bench (Vals) | 57.8% | 86.6% |
| GPQA Diamond (Vals) | 88.1% | – |
| Vals Index | – | 57.0 |
| IMO 2025 | 21.4% | – |
| MathArena Apex | 2.1% | – |
| Kagi LLM Benchmark | 73.6% | – |
| IFEval (HELM) | 94.9% | – |
| Omni-MATH (HELM) | 60.3% | – |
| WildBench (HELM) | 79.7% | – |
| MMLU-Pro (HELM) | 85.1% | – |
| GPQA Diamond (HELM) | 72.6% | – |
| HELM Capabilities mean | 78.5% | – |
| Aider Polyglot | 79.6% | – |
| ARC-AGI-1 | 79.6% | – |
| ARC-AGI-2 | 29.4% | – |
| BFCL Overall | 63.0% | – |
Data as of 2026-09-13. Best configuration of each model; every score links to its source on the model pages.
Grok 4 vs Muse Spark 1.2: questions
- Is Grok 4 better than Muse Spark 1.2?
- Grok 4 and Muse Spark 1.2 (xhigh) are level on quality (59.8 vs 60.7). The BenchLeader Index combines every independent quality benchmark; Muse Spark 1.2 (xhigh) is ahead overall as of 2026-09-13, but check the category scores for your use.
- Is Grok 4 better than Muse Spark 1.2 for coding?
- Grok 4 scores higher in coding (61 vs 57 on the category index, where 50 is average).
- Is Grok 4 better than Muse Spark 1.2 for agentic tasks?
- Grok 4 scores higher in agentic tasks (53 vs 50 on the category index, where 50 is average).
- Which is cheaper, Grok 4 or Muse Spark 1.2?
- Grok 4 is cheaper: $1.56 against $2.00 per million tokens, blended at three input tokens per output token.
- Which has the larger context window?
- Muse Spark 1.2 accepts more context: 1.0M against 256k tokens.