Gemini 3 Pro Preview vs GPT-4o (Omni)
Compare Gemini 3 Pro Preview by Google AI against GPT-4o (Omni) by OpenAI, tested across 51 shared challenges. Updated June 2026.
Which is better, Gemini 3 Pro Preview or GPT-4o (Omni)?
Gemini 3 Pro Preview and GPT-4o (Omni) are both competitive models. Compare their real outputs side by side below.
Key Differences Between Gemini 3 Pro Preview and GPT-4o (Omni)
Gemini 3 Pro Preview is made by google while GPT-4o (Omni) is from openai.
Our Verdict
Gemini 3 Pro Preview
GPT-4o (Omni)
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
Gemini 3 Pro Preview
Input
—
Output
—
GPT-4o (Omni)
Input
$2.50
Output
$10.00
Writing DNA
Style Comparison
Similarity
73%
GPT-4o (Omni) uses 2.5x more emoji
Gemini 3 Pro Preview
GPT-4o (Omni)
58%Vocabulary54%
17wSentence Length18w
0.37Hedging0.72
7.7Bold7.3
4.8Lists5.6
0.00Emoji0.03
0.90Headings1.40
0.25Transitions0.26
Based on 23 + 24 text responses
Research
What we learned reading every model
FAQ
