Gemini 2.5 Flash Preview vs Grok 3 Beta
Compare Gemini 2.5 Flash Preview by Google AI against Grok 3 Beta by xAI, context windows of 1.0M vs 131K, tested across 27 shared challenges.
Our Verdict
Gemini 2.5 Flash Preview
Grok 3 Beta
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Flash Preview is 6.7x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview
Input
$0.15
13× cheaper
Output
$0.60
6.7× cheaper
Grok 3 Beta
Input
$2.00
Output
$4.00
Gemini 2.5 Flash Preview is cheaper on both — 13× input, 6.7× output
Writing DNA
Style Comparison
Similarity
67%
Grok 3 Beta uses 5.9x more headings
Gemini 2.5 Flash Preview
Grok 3 Beta
51%Vocabulary48%
15wSentence Length19w
0.70Hedging0.67
4.1Bold3.1
3.3Lists5.5
0.00Emoji0.00
0.09Headings0.52
0.24Transitions0.28
Based on 12 + 23 text responses
Research
What we learned reading every model
FAQ
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