Compare / GPT-5 vs GPT-5.2
GPT-5 vs GPT-5.2
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 | GPT-5 | GPT-5.2 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,183 | 1,162 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,421 | 1,442 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,413 | 1,444 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,373 | 1,391 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,460 | 1,475 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,410 | 1,427 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,435 | 1,437 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,397 | 1,411 |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 58.0% | 76.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.39 | 0.40 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 53.5 | 49.4 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 99.9% | 100.0% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 14.7% | 8.4% |
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.