Gemini Pro 1.0 vs OpenAI o3
Compare Gemini Pro 1.0 by Google AI against OpenAI o3 by OpenAI, tested across 27 shared challenges. Updated May 2026.
Which is better, Gemini Pro 1.0 or OpenAI o3?
Gemini Pro 1.0 and OpenAI o3 are both competitive models. Gemini Pro 1.0 costs $0.5/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Gemini Pro 1.0 and OpenAI o3
Gemini Pro 1.0 is made by google while OpenAI o3 is from openai. On pricing, Gemini Pro 1.0 costs $0.5/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
Gemini Pro 1.0
Input
$0.50
20× cheaper
Output
$1.50
27× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Gemini Pro 1.0 is cheaper on both — 20× input, 27× output
Our Verdict
OpenAI o3
Gemini Pro 1.0Runner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer.
Gemini Pro 1.0 is 27x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
46%
Gemini Pro 1.0 uses 7.6x more bold
Gemini Pro 1.0
OpenAI o3
61%Vocabulary68%
13wSentence Length14w
0.41Hedging0.26
5.3Bold0.7
5.4Lists3.0
0.00Emoji0.00
0.46Headings0.38
0.38Transitions0.12
Based on 13 + 16 text responses
FAQ
