Compare / Claude Opus 4.8 vs GPT-4.1
Claude Opus 4.8 vs GPT-4.1
11 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 4.8 | GPT-4.1 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,469 | 1,408 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,490 | 1,415 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,467 | 1,402 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,525 | 1,405 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,491 | 1,403 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,480 | 1,415 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,474 | 1,405 |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 53.0% | 31.1% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 6.0% | 6.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.40 | 0.33 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 65.9 | 67.5 |
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.