Compare / Claude Opus 4.1 vs Claude Opus 4.7
Claude Opus 4.1 vs Claude Opus 4.7
13 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 4.1 | Claude Opus 4.7 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,167 | 1,212 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,435 | 1,477 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,447 | 1,508 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,445 | 1,488 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,482 | 1,535 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,458 | 1,503 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,450 | 1,502 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,446 | 1,496 |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 3.0% | 1.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.38 | 0.41 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 69.9 | 61.4 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 92.4% | 98.0% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 11.8% | 12.0% |
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.