Compare / GPT-5.5 vs GLM 5.2
GPT-5.5 vs GLM 5.2
16 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-5.5 | GLM 5.2 |
|---|---|---|---|
| Arena (formerly LMArena)reported | Confirmed task successIPS effect estimate | -0.03 | 0.04 |
| Arena (formerly LMArena)reported | Praise over complaintIPS effect estimate | 0.08 | 0.10 |
| Arena (formerly LMArena)reported | SteerabilityIPS effect estimate | 0.07 | 0.04 |
| Arena (formerly LMArena)reported | Tool groundingIPS effect estimate | 0.00 | 0.00 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,486 | 1,463 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,489 | 1,463 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,452 | 1,455 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,513 | 1,500 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,478 | 1,470 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,481 | 1,476 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,470 | 1,459 |
| tau2-benchreported | Consistency (pass^4)% of tasks | 29.9% | 13.4% |
| tau2-benchreported | Task success (pass^1)% of tasks | 44.6% | 37.1% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 13.0% | 12.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.41 | 0.37 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 69.7 | 67.0 |
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.