GPT-5 Pro vs Muse Spark
GPT-5 Pro 
Muse Spark Verdict
- Muse Spark leads on quality: 65.6 vs 60.8.
- GPT-5 Pro is stronger in knowledge, multimodal.
- Muse Spark is stronger in reasoning, agents & tools, coding, composite, human preference, instruction following, long context, maths.
| Metric | GPT-5 Pro | Muse Spark |
|---|---|---|
| BenchLeader Index | 60.8 | 65.6 |
| Knowledge score | 68.0 | 64.6 |
| Multimodal score | 67.4 | 65.9 |
| Reasoning score | 57.6 | 70.2 |
| Agents & tools score | – | 66.4 |
| Coding score | – | 66.2 |
| Composite score | – | 68.6 |
| Human preference score | – | 69.3 |
| Instruction following score | – | 79.7 |
| Long context score | – | 65.5 |
| Maths score | – | 56.4 |
| Blended price $/M | $41.25 | – |
| Context window | 400k | 262k |
| GPQA Diamond | – | 89.8% |
| OTIS Mock AIME | – | 88.9% |
| Humanity's Last Exam | 31.6% | 40.6% |
| SimpleBench | 61.6% | – |
| SciCode | – | 51.5% |
| ProofBench | – | 17.0% |
| Epoch Capabilities Index | 150.3 | 152.1 |
| LMArena Text | – | 1488 |
| LMArena Hard Prompts | – | 1505 |
| LMArena Coding | – | 1526 |
| LMArena Vision | – | 1306 |
| AA Intelligence Index | – | 31.3 |
| IFBench | – | 75.9% |
| AA-LCR | – | 78.0% |
| MMMU-Pro | – | 80.5% |
| AA-Omniscience | – | 7.2 |
| Terminal-Bench Hard | – | 45.5% |
| GPQA Diamond (AA) | – | 88.4% |
| Humanity's Last Exam (AA) | – | 40.7% |
| τ²-Bench Telecom (AA) | – | 91.5% |
| AIME (Vals) | – | 96.9% |
| MMLU-Pro | – | 87.3% |
| LegalBench | – | 84.2% |
| CorpFin | – | 65.1% |
| TaxEval | – | 77.7% |
| SWE-bench (Vals) | – | 74.4% |
| GPQA Diamond (Vals) | – | 89.7% |
| SWE-Bench Pro | – | 55.0% |
| MCP Atlas | – | 82.2% |
| MultiChallenge | – | 75.5% |
| PRBench Finance | 51.1% | 52.4% |
| PRBench Legal | 49.9% | 52.3% |
| VISTA | 52.4% | – |
| MultiNRC | 65.2% | 59.0% |
| TutorBench | – | 68.5% |
| Kagi LLM Benchmark | 76.8% | – |
| ARC-AGI-1 | 70.2% | – |
| ARC-AGI-2 | 18.3% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GPT-5 Pro vs Muse Spark: questions
- Is GPT-5 Pro better than Muse Spark?
- Muse Spark leads on quality: 65.6 vs 60.8. 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.
- Which has the larger context window?
- GPT-5 Pro accepts more context: 400k against 262k tokens.