Claude Opus 4.1 vs Muse Spark 1.1
Claude Opus 4.1 
Muse Spark 1.1 Verdict
- Muse Spark 1.1 leads on quality: 65.0 vs 58.2.
- Claude Opus 4.1 (thinking) is stronger in agents & tools, maths.
- Muse Spark 1.1 is stronger in coding, composite, human preference, instruction following, knowledge, long context, multimodal, reasoning.
- Muse Spark 1.1 is 15× cheaper ($2.00 vs $30.00 per 1M blended).
- Muse Spark 1.1 streams 19.4× faster (194 vs 10 tokens per second).
| Metric | Claude Opus 4.1 (thinking) | Muse Spark 1.1 |
|---|---|---|
| BenchLeader Index | 58.2 | 65.0 |
| Agents & tools score | 63.6 | 62.7 |
| Coding score | 53.3 | 68.1 |
| Composite score | 57.9 | 72.3 |
| Human preference score | 64.6 | 66.3 |
| Instruction following score | 52.6 | 77.8 |
| Knowledge score | 58.3 | 73.2 |
| Long context score | 64.5 | 65.4 |
| Maths score | 59.3 | 52.2 |
| Multimodal score | 56.5 | 65.0 |
| Reasoning score | 65.6 | 69.2 |
| Blended price $/M | $30.00 | $2.00 |
| Output speed | 10 tok/s | 194 tok/s |
| Time to first answer | 3.2 s | 2.6 s |
| Context window | 200k | 1.0M |
| SimpleQA Verified | – | 57.8% |
| SciCode | – | 58.2% |
| APEX-Agents | – | 41.9% |
| ProofBench | – | 39.0% |
| Epoch Capabilities Index | – | 154.6 |
| LMArena Text | 1450 | 1492 |
| LMArena Hard Prompts | 1480 | 1511 |
| LMArena Coding | 1512 | 1531 |
| LMArena WebDev | – | 1541 |
| LMArena Vision | – | 1293 |
| LMArena Agent | – | -2.6 |
| AA Intelligence Index | 22.9 | 34.3 |
| IFBench | 55.4% | – |
| AA-LCR | 76.0% | 77.7% |
| MMMU-Pro | 67.9% | – |
| AA-Omniscience | – | 28.1 |
| Terminal-Bench Hard | 34.3% | – |
| GPQA Diamond (AA) | 80.9% | 89.8% |
| Humanity's Last Exam (AA) | 12.5% | 46.2% |
| SciCode (AA) | – | 58.8% |
| τ²-Bench Telecom (AA) | 71.4% | – |
| AIME (Vals) | 78.2% | – |
| LiveCodeBench | 66.5% | – |
| MMLU-Pro | 87.9% | – |
| TaxEval | 73.7% | – |
| MedQA | 93.6% | – |
| MGSM | 94.4% | – |
| GPQA Diamond (Vals) | 76.3% | – |
| SWE-Bench Pro | – | 61.5% |
| MCP Atlas | – | 88.1% |
| MultiChallenge | 57.2% | 75.3% |
| PRBench Finance | – | 55.0% |
| PRBench Legal | – | 57.0% |
| VISTA | 48.4% | – |
| MultiNRC | 38.4% | 65.6% |
| TutorBench | 50.8% | – |
| 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 Opus 4.1 vs Muse Spark 1.1: questions
- Is Claude Opus 4.1 better than Muse Spark 1.1?
- Muse Spark 1.1 leads on quality: 65.0 vs 58.2. 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 Opus 4.1 better than Muse Spark 1.1 for coding?
- Muse Spark 1.1 scores higher in coding (68 vs 53 on the category index, where 50 is average).
- Is Claude Opus 4.1 better than Muse Spark 1.1 for agentic tasks?
- Claude Opus 4.1 scores higher in agentic tasks (64 vs 63 on the category index, where 50 is average).
- Which is cheaper, Claude Opus 4.1 or Muse Spark 1.1?
- Muse Spark 1.1 is cheaper: $2.00 against $30.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 4.1 or Muse Spark 1.1?
- Muse Spark 1.1 streams faster: 194 against 10 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.1 accepts more context: 1.0M against 200k tokens.