Compare / Claude Opus 5 vs Gemini 3.1 Pro Preview

Claude Opus 5 vs Gemini 3.1 Pro Preview

14 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Claude Opus 5
Anthropic · profile
Gemini 3.1 Pro Preview
Google · profile
Results compared
14
Shared sources
2
BenchmarkMetricClaude Opus 5Gemini 3.1 Pro Preview
Arena (formerly LMArena)reportedConfirmed task successIPS effect estimate 0.10-0.08
Arena (formerly LMArena)reportedPraise over complaintIPS effect estimate 0.18-0.01
Arena (formerly LMArena)reportedSteerabilityIPS effect estimate 0.11-0.04
Arena (formerly LMArena)reportedTool groundingIPS effect estimate 0.00-0.00
Arena (formerly LMArena)reportedOverallArena rating 1,4901,459
Arena (formerly LMArena)reportedOverallArena rating 1,4881,472
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,4861,477
Arena (formerly LMArena)reportedCreative writingArena rating 1,4721,480
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5431,509
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4971,479
Arena (formerly LMArena)reportedOverallArena rating 1,4911,487
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4821,480
tau2-benchreportedConsistency (pass^4)% of tasks 32.0%9.3%
tau2-benchreportedTask success (pass^1)% of tasks 48.7%26.0%

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.