Compare / DeepSeek V4.1 Flash vs Gemini 3.8 Flash
DeepSeek V4.1 Flash vs Gemini 3.8 Flash
39 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | DeepSeek V4.1 Flash | Gemini 3.8 Flash |
|---|---|---|---|
| CatalogBenchmeasured by us | Channel rules broken% of products | 1.8% | 3.0% |
| CatalogBenchmeasured by us | Content quality% of checks | 95.4% | 97.3% |
| CatalogBenchmeasured by us | Failed outputs% of products | 0.6% | 0.0% |
| CatalogBenchmeasured by us | Missing UK information% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Not findable% of products | 3.6% | 8.9% |
| CatalogBenchmeasured by us | Publish-ready listings% of products | 24.4% | 2.4% |
| CatalogBenchmeasured by us | Reliably publish-ready% of products | 10.7% | 1.8% |
| CatalogBenchmeasured by us | Unsupported claimsclaims per product | 2.79 | 7.12 |
| CatalogBenchmeasured by us | Unsupported claims% of products | 70.2% | 97.0% |
| CatalogBenchmeasured by us | Wrong attributes% of products | 20.2% | 11.9% |
| CatalogBenchmeasured by us | Wrong category or variant% of products | 2.4% | 3.0% |
| CatalogBenchmeasured by us | Channel compliance% of products | 99.4% | 98.8% |
| CatalogBenchmeasured by us | Channel rules broken% of products | 3.0% | 1.2% |
| CatalogBenchmeasured by us | Conflicts caught% of conflicts | 100.0% | 100.0% |
| CatalogBenchmeasured by us | Content quality% of checks | 96.3% | 97.1% |
| CatalogBenchmeasured by us | Cost per productUS dollars | $0.0061 | $0.0103 |
| CatalogBenchmeasured by us | Decision accuracy% of decisions | 96.2% | 94.3% |
| CatalogBenchmeasured by us | Failed outputs% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Field accuracy% of missing fields | 94.4% | 92.7% |
| CatalogBenchmeasured by us | Invented values% of filled values | 3.1% | 0.2% |
| CatalogBenchmeasured by us | Missing UK information% of products | 0.0% | 0.0% |
| CatalogBenchmeasured by us | Not findable% of products | 3.6% | 8.3% |
| CatalogBenchmeasured by us | Publish-ready listings% of products | 58.3% | 33.3% |
| CatalogBenchmeasured by us | Reliably publish-ready% of products | 35.7% | 16.1% |
| CatalogBenchmeasured by us | Unsupported claimsclaims per product | 0.72 | 1.79 |
| CatalogBenchmeasured by us | Unsupported claims% of products | 19.6% | 60.1% |
| CatalogBenchmeasured by us | Wrong attributes% of products | 20.2% | 15.5% |
| CatalogBenchmeasured by us | Wrong category or variant% of products | 3.0% | 3.6% |
| Arena (formerly LMArena)reported | Confirmed task successIPS effect estimate | 0.12 | 0.09 |
| Arena (formerly LMArena)reported | Praise over complaintIPS effect estimate | 0.03 | 0.05 |
| Arena (formerly LMArena)reported | SteerabilityIPS effect estimate | -0.03 | 0.04 |
| Arena (formerly LMArena)reported | Tool groundingIPS effect estimate | 0.00 | 0.00 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,471 | 1,477 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,481 | 1,482 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,440 | 1,482 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,518 | 1,529 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,478 | 1,488 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,477 | 1,492 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,455 | 1,486 |
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.