Compare / Claude Opus 5.5 vs Gemini 3.5 Flash Lite
Claude Opus 5.5 vs Gemini 3.5 Flash Lite
48 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 5.5 | Gemini 3.5 Flash Lite |
|---|---|---|---|
| BulletBenchmeasured by us | Cost per gameUS dollars | $0.18 | $0.0087 |
| BulletBenchmeasured by us | Games lost on time% of games | 62.5% | 0.0% |
| BulletBenchmeasured by us | Invalid moves% of moves | 0.0% | 0.5% |
| BulletBenchmeasured by us | Ladder Eloladder Elo | 557 | 707 |
| BulletBenchmeasured by us | Median move timemilliseconds | 7.5 s | 0.8 s |
| CatalogBenchmeasured by us | Channel rules broken% of products | 0.6% | 6.5% |
| CatalogBenchmeasured by us | Content quality% of checks | 96.6% | 94.7% |
| CatalogBenchmeasured by us | Failed outputs% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Missing UK information% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Not findable% of products | 1.8% | 21.4% |
| CatalogBenchmeasured by us | Publish-ready listings% of products | 3.6% | 0.6% |
| CatalogBenchmeasured by us | Reliably publish-ready% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Unsupported claimsclaims per product | 4.36 | 8.83 |
| CatalogBenchmeasured by us | Unsupported claims% of products | 95.2% | 97.6% |
| CatalogBenchmeasured by us | Wrong attributes% of products | 15.5% | 35.1% |
| CatalogBenchmeasured by us | Wrong category or variant% of products | 1.8% | 10.7% |
| CatalogBenchmeasured by us | Channel compliance% of products | 100.0% | 98.2% |
| CatalogBenchmeasured by us | Channel rules broken% of products | 0.0% | 1.8% |
| CatalogBenchmeasured by us | Conflicts caught% of conflicts | 100.0% | 84.8% |
| CatalogBenchmeasured by us | Content quality% of checks | 97.2% | 95.2% |
| CatalogBenchmeasured by us | Cost per productUS dollars | $0.0400 | $0.0020 |
| CatalogBenchmeasured by us | Decision accuracy% of decisions | 96.6% | 91.2% |
| CatalogBenchmeasured by us | Failed outputs% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Field accuracy% of missing fields | 92.2% | 92.5% |
| CatalogBenchmeasured by us | Invented values% of filled values | 0.5% | 0.8% |
| CatalogBenchmeasured by us | Missing UK information% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Not findable% of products | 3.0% | 20.2% |
| CatalogBenchmeasured by us | Publish-ready listings% of products | 58.3% | 15.5% |
| CatalogBenchmeasured by us | Reliably publish-ready% of products | 39.3% | 3.6% |
| CatalogBenchmeasured by us | Unsupported claimsclaims per product | 0.83 | 2.44 |
| CatalogBenchmeasured by us | Unsupported claims% of products | 30.9% | 67.3% |
| CatalogBenchmeasured by us | Wrong attributes% of products | 15.5% | 34.5% |
| CatalogBenchmeasured by us | Wrong category or variant% of products | 1.8% | 9.5% |
| ROASBenchmeasured by us | Audience scorescore out of 100 | 67.7 | 45.0 |
| ROASBenchmeasured by us | Business scorescore out of 100 | 52.3 | 12.6 |
| ROASBenchmeasured by us | Consistency scorescore out of 100 | 33.8 | 21.8 |
| ROASBenchmeasured by us | Contribution profitsimulated US dollars | $911,566 | $11,834 |
| ROASBenchmeasured by us | Cost of a runUS dollars | $1.06 | $0.0390 |
| ROASBenchmeasured by us | Months over budgetmonths of 12 | 0 | 0 |
| ROASBenchmeasured by us | Overall scorescore out of 100 | 51.6 | 25.4 |
| ROASBenchmeasured by us | Planning scorescore out of 100 | 54.6 | 54.9 |
| ROASBenchmeasured by us | Return on ad spendprofit per $1 spent | $0.69 | $0.01 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,499 | 1,454 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,521 | 1,435 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,556 | 1,467 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,516 | 1,444 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,509 | 1,456 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,520 | 1,442 |
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.