Claude Sonnet 4.6 vs Muse Spark
Claude Sonnet 4.6 
Muse Spark Verdict
- Muse Spark leads on quality: 65.6 vs 60.4.
- Claude Sonnet 4.6 is stronger in long context, maths.
- Muse Spark is stronger in agents & tools, coding, composite, human preference, instruction following, knowledge, multimodal, reasoning.
| Metric | Claude Sonnet 4.6 | Muse Spark |
|---|---|---|
| BenchLeader Index | 60.4 | 65.6 |
| Agents & tools score | 54.6 | 66.4 |
| Coding score | 57.1 | 66.2 |
| Composite score | 67.5 | 68.6 |
| Human preference score | 62.0 | 69.3 |
| Instruction following score | 56.9 | 79.7 |
| Knowledge score | 62.3 | 64.6 |
| Long context score | 66.6 | 65.5 |
| Maths score | 62.7 | 56.4 |
| Multimodal score | 60.6 | 65.9 |
| Reasoning score | 65.2 | 70.2 |
| Blended price $/M | $6.00 | – |
| Output speed | 42 tok/s | – |
| Time to first answer | 2.2 s | – |
| Context window | 1M | 262k |
| GPQA Diamond | 87.4% | 89.8% |
| OTIS Mock AIME | 85.8% | 88.9% |
| SWE-bench Verified (Epoch) | 75.2% | – |
| Humanity's Last Exam | – | 40.6% |
| Terminal-Bench | 53.4% | – |
| SciCode | – | 51.5% |
| FrontierCode | 24.3% | – |
| ProofBench | – | 17.0% |
| Epoch Capabilities Index | 152.3 | 152.1 |
| LMArena Text | 1472 | 1488 |
| LMArena Hard Prompts | 1504 | 1505 |
| LMArena Coding | 1528 | 1526 |
| LMArena WebDev | 1521 | – |
| LMArena Vision | 1282 | 1306 |
| LMArena Agent | -1 | – |
| AA Intelligence Index | 30.4 | 31.3 |
| IFBench | 56.6% | 75.9% |
| AA-LCR | 80.0% | 78.0% |
| MMMU-Pro | 73.3% | 80.5% |
| AA-Omniscience | 12.2 | 7.2 |
| Terminal-Bench Hard | 53.0% | 45.5% |
| GPQA Diamond (AA) | 87.5% | 88.4% |
| Humanity's Last Exam (AA) | 33.6% | 40.7% |
| SciCode (AA) | 50.1% | – |
| τ²-Bench Telecom (AA) | 79.5% | 91.5% |
| AIME (Vals) | 92.3% | 96.9% |
| LiveCodeBench | 82.1% | – |
| MMLU-Pro | 87.3% | 87.3% |
| LegalBench | 82.1% | 84.2% |
| CorpFin | 65.3% | 65.1% |
| TaxEval | 77.1% | 77.7% |
| MedQA | 92.1% | – |
| Terminal-Bench 2.1 (Vals) | 57.3% | – |
| SWE-bench (Vals) | 77.4% | 74.4% |
| GPQA Diamond (Vals) | 85.6% | 89.7% |
| Vals Index | 50.6 | – |
| SWE-Bench Pro | – | 55.0% |
| MCP Atlas | 69.5% | 82.2% |
| MultiChallenge | – | 75.5% |
| PRBench Finance | – | 52.4% |
| PRBench Legal | – | 52.3% |
| MultiNRC | – | 59.0% |
| TutorBench | – | 68.5% |
| EQ-Bench 4 | 1207 | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Claude Sonnet 4.6 vs Muse Spark: questions
- Is Claude Sonnet 4.6 better than Muse Spark?
- Muse Spark leads on quality: 65.6 vs 60.4. The BenchLeader Index combines every independent quality benchmark; Muse Spark is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Claude Sonnet 4.6 better than Muse Spark for coding?
- Muse Spark scores higher in coding (66 vs 57 on the category index, where 50 is average).
- Is Claude Sonnet 4.6 better than Muse Spark for agentic tasks?
- Muse Spark scores higher in agentic tasks (66 vs 55 on the category index, where 50 is average).
- Which has the larger context window?
- Claude Sonnet 4.6 accepts more context: 1M against 262k tokens.