Compare / Qwen3.5-Flash vs Claude Sonnet 4.5
Qwen3.5-Flash vs Claude Sonnet 4.5
15 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Qwen3.5-Flash | Claude Sonnet 4.5 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,414 | 1,449 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,403 | 1,461 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,338 | 1,454 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,420 | 1,498 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,381 | 1,464 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,396 | 1,457 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,367 | 1,454 |
| OpenHands Indexreported | Average% resolved | 38.1% | 53.0% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 27.9% | 36.8% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 12.5% | 12.5% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 49.7% | 72.7% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 62.0% | 74.2% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 38.3% | 68.8% |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 99.8% | 95.6% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 10.5% | 12.0% |
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.