Compare / Gemini 3.1 Pro Preview vs Gemini 3.5 Flash
Gemini 3.1 Pro Preview vs Gemini 3.5 Flash
22 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Gemini 3.1 Pro Preview | Gemini 3.5 Flash |
|---|---|---|---|
| BulletBenchmeasured by us | Cost per gameUS dollars | $0.0446 | $0.0289 |
| BulletBenchmeasured by us | Games lost on time% of games | 58.3% | 25.0% |
| BulletBenchmeasured by us | Invalid moves% of moves | 0.0% | 0.5% |
| BulletBenchmeasured by us | Ladder Eloladder Elo | 529 | 810 |
| BulletBenchmeasured by us | Median move timemilliseconds | 3.1 s | 1.2 s |
| Arena (formerly LMArena)reported | OverallArena rating | 1,459 | 1,461 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,472 | 1,476 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,477 | 1,468 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,480 | 1,466 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,509 | 1,491 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,479 | 1,465 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,487 | 1,477 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,480 | 1,472 |
| OpenHands Indexreported | Average% resolved | 60.6% | 62.6% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 44.1% | 39.7% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 25.0% | 37.5% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 81.8% | 81.2% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 76.8% | 78.6% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 75.1% | 76.2% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 19.0% | 9.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.34 | 0.35 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 72.2 | 72.5 |
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.