Compare / Claude Haiku 4.5 vs Muse Spark 1.2
Claude Haiku 4.5 vs Muse Spark 1.2
17 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Haiku 4.5 | Muse Spark 1.2 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,418 | 1,484 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,420 | 1,519 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,387 | 1,448 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,452 | 1,502 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,415 | 1,475 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,414 | 1,496 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,399 | 1,472 |
| Artificial Analysisreported | Artificial Analysis Coding Indexindex score | 43.9 | 72.2 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 16.9 | 39.6 |
| Artificial Analysisreported | GPQA Diamond% of questions | 67.2% | 90.4% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 10.4% | 45.5% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 74.3% | 79.0% |
| Artificial Analysisreported | SciCode% of problems | 42.2% | 57.4% |
| Artificial Analysisreported | Terminal-Bench 2.1% of tasks | 44.2% | 80.2% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 0.0% | 7.1% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 9.3% | 34.8% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 13.2% | 60.3% |
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.