Grok 4.3 vs Muse Spark 1.1
Grok 4.3 
Muse Spark 1.1 Verdict
- Muse Spark 1.1 leads on quality: 65.0 vs 60.7.
- Grok 4.3 (medium) is stronger in instruction following.
- Muse Spark 1.1 is stronger in agents & tools, composite, knowledge, long context, multimodal, coding, human preference, maths, reasoning.
- Grok 4.3 (medium) is 1.3× cheaper ($1.56 vs $2.00 per 1M blended).
- Muse Spark 1.1 streams 1.7× faster (194 vs 112 tokens per second).
| Metric | Grok 4.3 (medium) | Muse Spark 1.1 |
|---|---|---|
| BenchLeader Index | 60.7 | 65.0 |
| Agents & tools score | 60.1 | 62.7 |
| Composite score | 60.3 | 72.3 |
| Instruction following score | 80.0 | 77.8 |
| Knowledge score | 72.1 | 73.2 |
| Long context score | 64.0 | 65.4 |
| Multimodal score | 60.2 | 65.0 |
| Coding score | – | 68.1 |
| Human preference score | – | 66.3 |
| Maths score | – | 52.2 |
| Reasoning score | – | 69.2 |
| Blended price $/M | $1.56 | $2.00 |
| Output speed | 112 tok/s | 194 tok/s |
| Time to first answer | 12.1 s | 2.6 s |
| Context window | 1M | 1.0M |
| SimpleQA Verified | – | 57.8% |
| SciCode | – | 58.2% |
| APEX-Agents | – | 41.9% |
| ProofBench | – | 39.0% |
| Epoch Capabilities Index | – | 154.6 |
| LMArena Text | – | 1492 |
| LMArena Hard Prompts | – | 1511 |
| LMArena Coding | – | 1531 |
| LMArena WebDev | – | 1541 |
| LMArena Vision | – | 1293 |
| LMArena Agent | – | -2.6 |
| AA Intelligence Index | 24.8 | 34.3 |
| IFBench | 83.3% | – |
| AA-LCR | 75.0% | 77.7% |
| MMMU-Pro | 75.8% | – |
| AA-Omniscience | 16.7 | 28.1 |
| Terminal-Bench Hard | 30.3% | – |
| GPQA Diamond (AA) | 89.0% | 89.8% |
| Humanity's Last Exam (AA) | 30.0% | 46.2% |
| SciCode (AA) | – | 58.8% |
| τ²-Bench Telecom (AA) | 91.2% | – |
| SWE-Bench Pro | – | 61.5% |
| MCP Atlas | – | 88.1% |
| MultiChallenge | – | 75.3% |
| PRBench Finance | – | 55.0% |
| PRBench Legal | – | 57.0% |
| MultiNRC | – | 65.6% |
| EQ-Bench 4 | – | 1260 |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Grok 4.3 vs Muse Spark 1.1: questions
- Is Grok 4.3 better than Muse Spark 1.1?
- Muse Spark 1.1 leads on quality: 65.0 vs 60.7. The BenchLeader Index combines every independent quality benchmark; Muse Spark 1.1 is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Grok 4.3 better than Muse Spark 1.1 for agentic tasks?
- Muse Spark 1.1 scores higher in agentic tasks (63 vs 60 on the category index, where 50 is average).
- Which is cheaper, Grok 4.3 or Muse Spark 1.1?
- Grok 4.3 is cheaper: $1.56 against $2.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Grok 4.3 or Muse Spark 1.1?
- Muse Spark 1.1 streams faster: 194 against 112 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.1 accepts more context: 1.0M against 1M tokens.