Compare / Mistral Large 3 2512 vs GPT-5.2

Mistral Large 3 2512 vs GPT-5.2

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

Mistral Large 3 2512
Mistral · profile
GPT-5.2
OpenAI · profile
Results compared
12
Shared sources
3
BenchmarkMetricMistral Large 3 2512GPT-5.2
Arena (formerly LMArena)reportedOverallArena rating 1,4341,442
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4091,444
Arena (formerly LMArena)reportedCreative writingArena rating 1,3731,391
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4281,475
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4001,427
Arena (formerly LMArena)reportedOverallArena rating 1,4131,437
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,3881,411
UGI LeaderboardreportedRequested-length error% off the requested word count 15.0%76.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.380.40
UGI LeaderboardreportedWriting scorescore out of 100 41.649.4
Vectara Hallucination LeaderboardreportedAnswer rate% of documents 98.8%100.0%
Vectara Hallucination LeaderboardreportedHallucination rate% of summaries 14.5%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.