Gemini 3 Pro Preview vs GPT-5.3-Codex
Compare Gemini 3 Pro Preview by Google AI against GPT-5.3-Codex by OpenAI, in 2 community votes, gemini 3 pro preview and gpt-5.3-codex are closely matched, tested across 50 shared challenges.
Our Verdict
GPT-5.3-CodexWinner
Gemini 3 Pro PreviewRunner-up
Votes are tied. GPT-5.3-Codex is newer and likely incorporates more recent improvements.
Too close to call
API pricing
Cost per 1M tokens
Gemini 3 Pro Preview
Input
—
Output
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GPT-5.3-Codex
Input
$1.75
Output
$14.00
Writing DNA
Style Comparison
Similarity
55%
GPT-5.3-Codex uses 15.8x more emoji
Gemini 3 Pro Preview
GPT-5.3-Codex
58%Vocabulary65%
17wSentence Length23w
0.37Hedging0.51
7.7Bold6.5
4.8Lists6.2
0.00Emoji0.16
0.90Headings1.90
0.25Transitions0.03
Based on 23 + 23 text responses
Research
What we learned reading every model
FAQ
