Gemini 2.5 Pro (I/O Edition) vs OpenAI: GPT-5.6 Sol
Compare Gemini 2.5 Pro (I/O Edition) by Google AI against OpenAI: GPT-5.6 Sol by OpenAI, tested across 40 shared challenges.
Our Verdict
Gemini 2.5 Pro (I/O Edition)
OpenAI: GPT-5.6 Sol
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Pro (I/O Edition) is 3.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Pro (I/O Edition)
Input
$1.25
4.0× cheaper
Output
$10.00
3.0× cheaper
OpenAI: GPT-5.6 Sol
Input
$5.00
Output
$30.00
Gemini 2.5 Pro (I/O Edition) is cheaper on both — 4.0× input, 3.0× output
Writing DNA
Style Comparison
Similarity
47%
OpenAI: GPT-5.6 Sol uses 3.3x more emoji
Gemini 2.5 Pro (I/O Edition)
OpenAI: GPT-5.6 Sol
58%Vocabulary63%
16wSentence Length15w
0.38Hedging0.79
5.8Bold3.4
5.0Lists3.8
0.00Emoji0.03
0.63Headings0.95
0.01Transitions0.08
Based on 16 + 27 text responses
Research
What we learned reading every model
FAQ
