Compare / Qwen3.5-27B vs DeepSeek V4 Pro 0423

Qwen3.5-27B vs DeepSeek V4 Pro 0423

12 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Qwen3.5-27B
Alibaba · profile
DeepSeek V4 Pro 0423
DeepSeek · profile
Results compared
12
Shared sources
3
BenchmarkMetricQwen3.5-27BDeepSeek V4 Pro 0423
Arena (formerly LMArena)reportedOverallArena rating 1,4201,455
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4081,460
Arena (formerly LMArena)reportedCreative writingArena rating 1,3581,446
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4411,480
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4001,452
Arena (formerly LMArena)reportedOverallArena rating 1,4091,458
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,3801,451
UGI LeaderboardreportedRequested-length error% off the requested word count 11.0%34.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.330.36
UGI LeaderboardreportedWriting scorescore out of 100 42.468.4
Vectara Hallucination LeaderboardreportedAnswer rate% of documents 99.8%97.2%
Vectara Hallucination LeaderboardreportedHallucination rate% of summaries 12.1%8.6%

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.