Compare / Muse Spark 1.2 vs GPT-5.6 Luna
Muse Spark 1.2 vs GPT-5.6 Luna
22 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Muse Spark 1.2 | GPT-5.6 Luna |
|---|---|---|---|
| Arena (formerly LMArena)reported | Confirmed task successIPS effect estimate | -0.05 | -0.05 |
| Arena (formerly LMArena)reported | Praise over complaintIPS effect estimate | -0.12 | -0.04 |
| Arena (formerly LMArena)reported | SteerabilityIPS effect estimate | -0.05 | 0.02 |
| Arena (formerly LMArena)reported | Tool groundingIPS effect estimate | 0.00 | 0.00 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,484 | 1,461 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,519 | 1,463 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,448 | 1,412 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,502 | 1,491 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,475 | 1,446 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,496 | 1,454 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,472 | 1,435 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 72.2 | 71.4 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 39.6 | 37.3 |
| Artificial Analysisreported | GPQA Diamond% of questions | 90.4% | 91.1% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 45.5% | 39.5% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 79.0% | 83.7% |
| Artificial Analysisreported | SciCode% of problems | 57.4% | 53.6% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 80.2% | 80.9% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 7.1% | 11.6% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 34.8% | 31.1% |
| GDP.pdfreported | Professional document tasks% of rubric | 16.0% | 22.7% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 60.3% | 41.0% |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.