Claude Sonnet 5 vs Muse Spark 1.1
Claude Sonnet 5 
Muse Spark 1.1 Verdict
- Muse Spark 1.1 leads on quality: 65.0 vs 61.4.
- Muse Spark 1.1 is stronger in agents & tools, coding, composite, human preference, knowledge, long context, multimodal, reasoning, instruction following, maths.
- Muse Spark 1.1 is 2.0× cheaper ($2.00 vs $4.00 per 1M blended).
- Muse Spark 1.1 streams 3.3× faster (194 vs 60 tokens per second).
| Metric | Claude Sonnet 5 (high) | Muse Spark 1.1 |
|---|---|---|
| BenchLeader Index | 61.4 | 65.0 |
| Agents & tools score | 61.8 | 62.7 |
| Coding score | 61.6 | 68.1 |
| Composite score | 69.5 | 72.3 |
| Human preference score | 66.2 | 66.3 |
| Knowledge score | 62.4 | 73.2 |
| Long context score | 64.8 | 65.4 |
| Multimodal score | 63.1 | 65.0 |
| Reasoning score | 66.8 | 69.2 |
| Instruction following score | – | 77.8 |
| Maths score | – | 52.2 |
| Blended price $/M | $4.00 | $2.00 |
| Output speed | 60 tok/s | 194 tok/s |
| Time to first answer | 10.0 s | 2.6 s |
| Context window | 1M | 1.0M |
| SimpleQA Verified | – | 57.8% |
| SciCode | 48.6% | 58.2% |
| WeirdML | 68.8% | – |
| APEX-Agents | – | 41.9% |
| ProofBench | – | 39.0% |
| Epoch Capabilities Index | – | 154.6 |
| LMArena Text | 1462 | 1492 |
| LMArena Hard Prompts | 1490 | 1511 |
| LMArena Coding | 1521 | 1531 |
| LMArena WebDev | 1538 | 1541 |
| LMArena Vision | 1278 | 1293 |
| LMArena Agent | 6.3 | -2.6 |
| AA Intelligence Index | 32.0 | 34.3 |
| AA-LCR | 76.7% | 77.7% |
| AA-Omniscience | -3.7 | 28.1 |
| GPQA Diamond (AA) | – | 89.8% |
| Humanity's Last Exam (AA) | 35.7% | 46.2% |
| SciCode (AA) | 54.3% | 58.8% |
| 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.
Claude Sonnet 5 vs Muse Spark 1.1: questions
- Is Claude Sonnet 5 better than Muse Spark 1.1?
- Muse Spark 1.1 leads on quality: 65.0 vs 61.4. 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 Claude Sonnet 5 better than Muse Spark 1.1 for coding?
- Muse Spark 1.1 scores higher in coding (68 vs 62 on the category index, where 50 is average).
- Is Claude Sonnet 5 better than Muse Spark 1.1 for agentic tasks?
- Muse Spark 1.1 scores higher in agentic tasks (63 vs 62 on the category index, where 50 is average).
- Which is cheaper, Claude Sonnet 5 or Muse Spark 1.1?
- Muse Spark 1.1 is cheaper: $2.00 against $4.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Sonnet 5 or Muse Spark 1.1?
- Muse Spark 1.1 streams faster: 194 against 60 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.1 accepts more context: 1.0M against 1M tokens.