Compare / DeepSeek V3.1 Terminus vs GPT-5.5
DeepSeek V3.1 Terminus vs GPT-5.5
8 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | DeepSeek V3.1 Terminus | GPT-5.5 |
|---|---|---|---|
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,423 | 1,489 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,405 | 1,452 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,420 | 1,478 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,417 | 1,481 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,411 | 1,470 |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 32.0% | 13.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.37 | 0.41 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 54.0 | 69.7 |
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.