Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Gemini 3 Pro Deep Think
90
Grok 4.20
73
Pick Gemini 3 Pro Deep Think if you want the stronger benchmark profile. Grok 4.20 only becomes the better choice if reasoning is the priority.
Reasoning
+8.2 difference
Gemini 3 Pro Deep Think
Grok 4.20
$null / $null
$2 / $6
N/A
233 t/s
N/A
10.33s
2M
2M
Pick Gemini 3 Pro Deep Think if you want the stronger benchmark profile. Grok 4.20 only becomes the better choice if reasoning is the priority.
Gemini 3 Pro Deep Think is clearly ahead on the provisional aggregate, 90 to 73. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Gemini 3 Pro Deep Think is ahead on BenchLM's provisional leaderboard, 90 to 73. The biggest single separator in this matchup is ARC-AGI-2, where the scores are 45.1% and 53.3%.
Grok 4.20 has the edge for reasoning in this comparison, averaging 53.3 versus 45.1. Inside this category, ARC-AGI-2 is the benchmark that creates the most daylight between them.
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