Compare / Claude Opus 4.5 vs Muse Spark 1.1
Claude Opus 4.5 vs Muse Spark 1.1
10 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 4.5 | Muse Spark 1.1 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,465 | 1,479 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,459 | 1,463 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,472 | 1,493 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,469 | 1,449 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,503 | 1,504 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,483 | 1,473 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,474 | 1,491 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,467 | 1,460 |
| tau2-benchreported | Consistency (pass^4)% of tasks | 11.3% | 20.6% |
| tau2-benchreported | Task success (pass^1)% of tasks | 24.7% | 40.5% |
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.