Compare / Claude Opus 4.5 vs DeepSeek V4 Pro 0423
Claude Opus 4.5 vs DeepSeek V4 Pro 0423
18 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 4.5 | DeepSeek V4 Pro 0423 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,459 | 1,455 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,472 | 1,460 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,469 | 1,446 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,503 | 1,480 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,483 | 1,452 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,474 | 1,458 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,467 | 1,451 |
| OpenHands Indexreported | Average% resolved | 60.6% | 40.7% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 41.2% | 36.8% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 37.5% | 12.5% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 69.1% | 12.7% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 76.6% | 73.2% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 78.5% | 68.1% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 3.0% | 34.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.39 | 0.36 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 70.4 | 68.4 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 98.7% | 97.2% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 10.9% | 8.6% |
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.