Compare / Claude Opus 4.7 vs GPT-5
Claude Opus 4.7 vs GPT-5
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 4.7 | GPT-5 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,212 | 1,183 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,477 | 1,421 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,508 | 1,413 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,488 | 1,373 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,535 | 1,460 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,503 | 1,410 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,502 | 1,435 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,496 | 1,397 |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 1.0% | 58.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.41 | 0.39 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 61.4 | 53.5 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 98.0% | 99.9% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 12.0% | 14.7% |
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.