Claude Sonnet 5.5 vs Muse Spark 1.1
Claude Sonnet 5.5 
Muse Spark 1.1 Verdict
- Claude Sonnet 5.5 (max) leads on quality: 67.6 vs 63.1.
- Claude Sonnet 5.5 (max) is stronger in agents & tools, coding, composite, long context, maths, reasoning.
- Muse Spark 1.1 is stronger in knowledge, human preference, instruction following, multimodal.
- Muse Spark 1.1 is 2.0× cheaper ($2.00 vs $4.00 per 1M blended).
- Muse Spark 1.1 streams 1.4× faster (201 vs 141 tokens per second).
| Metric | Claude Sonnet 5.5 (max) | Muse Spark 1.1 |
|---|---|---|
| BenchLeader Index | 67.6 | 63.1 |
| Agents & tools score | 69.5 | 51.5 |
| Coding score | 69.8 | 66.6 |
| Composite score | 72.6 | – |
| Knowledge score | 65.4 | 70.3 |
| Long context score | 66.6 | – |
| Maths score | 72.9 | 61.9 |
| Reasoning score | 81.1 | 68.4 |
| Human preference score | – | 65.7 |
| Instruction following score | – | 74.2 |
| Multimodal score | – | 63.8 |
| Blended price $/M | $4.00 | $2.00 |
| Output speed | 141 tok/s | 201 tok/s |
| Time to first answer | 487.1 s | 1.9 s |
| Context window | 1M | 1.0M |
| GPQA Diamond | 95.6% | – |
| FrontierMath Tiers 1–3 | 88.8% | – |
| FrontierMath Tier 4 | 80.5% | – |
| OTIS Mock AIME | 100.0% | – |
| SimpleQA Verified | 46.5% | 57.8% |
| Terminal-Bench | 61.8% | – |
| SciCode | 61.0% | 58.8% |
| APEX-Agents | 75.5% | 31.8% |
| ProofBench | 100.0% | 39.0% |
| Epoch Capabilities Index | – | 154.2 |
| LMArena Text | – | 1491 |
| LMArena Hard Prompts | – | 1511 |
| LMArena Coding | – | 1533 |
| LMArena WebDev | – | 1542 |
| LMArena Vision | – | 1293 |
| LMArena Agent | 12 | -5 |
| LiveBench | 75.7% | – |
| LiveBench Reasoning | 91.6% | – |
| LiveBench Coding | 91.4% | – |
| LiveBench Agentic Coding | 56.3% | – |
| LiveBench Mathematics | 96.1% | – |
| LiveBench Data Analysis | 59.5% | – |
| LiveBench Language | 78.0% | – |
| LiveBench Instruction Following | 56.8% | – |
| AA Intelligence Index v4.3.2 | 56 | – |
| AA-LCR | 82.7% | – |
| AA-Omniscience | 32.3 | – |
| Humanity's Last Exam (AA) | 55.0% | – |
| SciCode (AA) | 61.0% | – |
| 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 |
| CritPt | 31.4% | – |
| GDPval-AA v2.1 | 67.0% | – |
| Analyst Agent (AA) | 57.5% | – |
| FORTRESS | – | 12.4% |
| SWE-Bench Pro (private) | – | 61.5% |
| LMArena Maths | – | 1495 |
| LMArena Creative Writing | – | 1445 |
| LMArena Instruction Following | – | 1472 |
| LMArena Multi-turn | – | 1497 |
| LMArena Longer Queries | – | 1481 |
| LMArena Document | – | 1480 |
| Mystery Game Puzzles | 65.0% | – |
| DeepSWE v1.1 | – | 53.3% |
| CursorBench | 55.5% | – |
| GBAEval | – | 7.9% |
| Vending-Bench 2 | – | 6520.5 |
| GDP.pdf | – | 15.0% |
| FrontierSWE | 61.9% | – |
| Terminal-Bench 4.0 (AA) | 63.6% | – |
| AutomationBench | 71.8% | – |
| GDP.pdf | 25.8% | – |
| MLCR | 75.0% | – |
| Harvey LAB | 2.8% | – |
| AA-Omniscience: accuracy | 54.0% | – |
| AA-Omniscience: non-hallucination | 53.0% | – |
| AA-Briefcase v1.1 | 1823 | – |
Data as of 2026-10-11. Best configuration of each model; every score links to its source on the model pages.
Claude Sonnet 5.5 vs Muse Spark 1.1: questions
- Is Claude Sonnet 5.5 better than Muse Spark 1.1?
- Claude Sonnet 5.5 (max) leads on quality: 67.6 vs 63.1. The BenchLeader Index combines every independent quality benchmark; Claude Sonnet 5.5 (max) is ahead overall as of 2026-10-11, but check the category scores for your use.
- Is Claude Sonnet 5.5 better than Muse Spark 1.1 for coding?
- Claude Sonnet 5.5 scores higher in coding (70 vs 67 on the category index, where 50 is average).
- Is Claude Sonnet 5.5 better than Muse Spark 1.1 for agentic tasks?
- Claude Sonnet 5.5 scores higher in agentic tasks (70 vs 52 on the category index, where 50 is average).
- Which is cheaper, Claude Sonnet 5.5 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 5.5 or Muse Spark 1.1?
- Muse Spark 1.1 streams faster: 201 against 141 output tokens per second.
- Which has the larger context window?
- Muse Spark 1.1 accepts more context: 1.0M against 1M tokens.