Compare / Gemini 3.1 Pro Preview vs grok-4-fast

Gemini 3.1 Pro Preview vs grok-4-fast

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

Gemini 3.1 Pro Preview
Google · profile
grok-4-fast
xAI · profile
Results compared
3
Shared sources
2
BenchmarkMetricGemini 3.1 Pro Previewgrok-4-fast
Arena (formerly LMArena)reportedOverallArena rating 1,2081,160
tau2-benchreportedConsistency (pass^4)% of tasks 9.3%4.1%
tau2-benchreportedTask success (pass^1)% of tasks 26.0%15.7%

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.