Compare / Claude Sonnet 4.5 vs gemini-3-flash
Claude Sonnet 4.5 vs gemini-3-flash
23 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 Sonnet 4.5 | gemini-3-flash |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,449 | 1,439 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,175 | 1,191 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,449 | 1,468 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,461 | 1,469 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,454 | 1,457 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,498 | 1,496 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,464 | 1,458 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,457 | 1,473 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,454 | 1,461 |
| OpenHands Indexreported | Average% resolved | 53.0% | 49.0% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 36.8% | 22.1% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 12.5% | 18.8% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 72.7% | 58.8% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 74.2% | 74.6% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 68.8% | 70.7% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 48.0% | 68.0% |
| tau2-benchreported | Task success (pass^1)% of tasks | 72.0% | 82.5% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 10.3% | 7.2% |
| tau2-benchreported | Task success (pass^1)% of tasks | 25.3% | 27.3% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 39.5% | 51.8% |
| tau2-benchreported | Task success (pass^1)% of tasks | 72.4% | 76.8% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 64.0% | 70.2% |
| tau2-benchreported | Task success (pass^1)% of tasks | 84.9% | 91.2% |
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.