Gemini 2.5 Pro (I/O Edition) vs OpenAI o3
Compare Gemini 2.5 Pro (I/O Edition) by Google AI against OpenAI o3 by OpenAI, in 38 community votes, gemini 2.5 pro (i/o edition) wins 73% of head-to-head duels, tested across 41 shared challenges.
Web Design: Gemini 2.5 Pro (I/O Edition) wins 64% of votes
Reasoning: Gemini 2.5 Pro (I/O Edition) wins 67% of votes
Image Generation: Gemini 2.5 Pro (I/O Edition) wins 100% of votes
Conversation: Gemini 2.5 Pro (I/O Edition) wins 75% of votes
Our Verdict
Gemini 2.5 Pro (I/O Edition)Winner
OpenAI o3Runner-up
Pick Gemini 2.5 Pro (I/O Edition). In 38 blind votes, Gemini 2.5 Pro (I/O Edition) wins 73% of the time. That's not luck.
Gemini 2.5 Pro (I/O Edition) particularly excels in Image Generation, Conversation, Reasoning. Gemini 2.5 Pro (I/O Edition) is 4.0x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Gemini 2.5 Pro (I/O Edition)
Input
$1.25
8.0× cheaper
Output
$10.00
4.0× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Gemini 2.5 Pro (I/O Edition) is cheaper on both — 8.0× input, 4.0× output
Writing DNA
Style Comparison
Similarity
39%
OpenAI o3 uses 9.9x more transitions
Gemini 2.5 Pro (I/O Edition)
OpenAI o3
58%Vocabulary68%
16wSentence Length14w
0.38Hedging0.26
5.8Bold0.7
5.0Lists3.0
0.00Emoji0.00
0.63Headings0.38
0.01Transitions0.12
Based on 16 + 16 text responses
Research
What we learned reading every model
FAQ
