Compare / gemini-3-flash vs GPT-5.5
gemini-3-flash vs GPT-5.5
15 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | gemini-3-flash | GPT-5.5 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,439 | 1,483 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,191 | 1,224 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,468 | 1,486 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,469 | 1,489 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,457 | 1,452 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,496 | 1,513 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,458 | 1,478 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,473 | 1,481 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,461 | 1,470 |
| OpenHands Indexreported | Average% resolved | 49.0% | 65.9% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 22.1% | 38.2% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 18.8% | 43.8% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 58.8% | 86.1% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 74.6% | 78.2% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 70.7% | 83.4% |
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.