Compare / DeepSeek V4 Pro 0423 vs GPT-5.6 Luna

DeepSeek V4 Pro 0423 vs GPT-5.6 Luna

25 results from 5 sources that measured both models. Each row is in the source's own units; there is no overall winner.

DeepSeek V4 Pro 0423
DeepSeek · profile
GPT-5.6 Luna
OpenAI · profile
Results compared
25
Shared sources
5
BenchmarkMetricDeepSeek V4 Pro 0423GPT-5.6 Luna
Arena (formerly LMArena)reportedConfirmed task successIPS effect estimate -0.04-0.05
Arena (formerly LMArena)reportedPraise over complaintIPS effect estimate -0.02-0.04
Arena (formerly LMArena)reportedSteerabilityIPS effect estimate -0.030.02
Arena (formerly LMArena)reportedTool groundingIPS effect estimate -0.000.00
Arena (formerly LMArena)reportedOverallArena rating 1,4551,461
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4601,463
Arena (formerly LMArena)reportedCreative writingArena rating 1,4461,412
Arena (formerly LMArena)reportedExpert promptsArena rating 1,4801,491
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4521,446
Arena (formerly LMArena)reportedOverallArena rating 1,4581,454
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4511,435
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 68.871.4
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 36.037.3
Artificial AnalysisreportedGPQA Diamond% of questions 92.8%91.1%
Artificial AnalysisreportedHumanity's Last Exam% of questions 41.0%39.5%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 80.3%83.7%
Artificial AnalysisreportedSciCode% of problems 51.0%53.6%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 78.7%80.9%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 14.1%11.6%
Artificial AnalysisreportedΤ-bench banking% of tasks 39.6%31.1%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 47.0%41.0%
UGI LeaderboardreportedRequested-length error% off the requested word count 34.0%15.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.360.38
UGI LeaderboardreportedWriting scorescore out of 100 68.453.7
Vending-Bench 2reportedMoney after a yearUS dollars $3,284.52$4,094.71

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.