Gemini 3 Flash Preview vs GPT-5.2 Pro
Compare Gemini 3 Flash Preview by Google AI against GPT-5.2 Pro by OpenAI, context windows of 1.0M vs 400K, tested across 31 shared challenges.
Our Verdict
Gemini 3 Flash Preview
GPT-5.2 Pro
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 3 Flash Preview is 56x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 3 Flash Preview
Input
$0.50
42× cheaper
Output
$3.00
56× cheaper
GPT-5.2 Pro
Input
$21.00
Output
$168.00
Gemini 3 Flash Preview is cheaper on both — 42× input, 56× output
Writing DNA
Style Comparison
Similarity
68%
Gemini 3 Flash Preview uses 4.6x more transitions
Gemini 3 Flash Preview
GPT-5.2 Pro
55%Vocabulary62%
18wSentence Length19w
0.42Hedging0.39
7.1Bold8.6
4.5Lists3.8
0.00Emoji0.00
0.84Headings1.17
0.07Transitions0.02
Based on 24 + 10 text responses
Research
What we learned reading every model
FAQ
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