Gemini 2.5 Pro (I/O Edition) vs Grok 4.5
Compare Gemini 2.5 Pro (I/O Edition) by Google AI against Grok 4.5 by xAI, tested across 40 shared challenges.
Our Verdict
Gemini 2.5 Pro (I/O Edition)
Grok 4.5
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 2.5 Pro (I/O Edition)
Input
$1.25
1.6× cheaper
Output
$10.00
Grok 4.5
Input
$2.00
Output
$6.00
1.7× cheaper
Gemini 2.5 Pro (I/O Edition) wins input (1.6× cheaper)·Grok 4.5 wins output (1.7× cheaper)
Writing DNA
Style Comparison
Similarity
47%
Grok 4.5 uses 9.0x more emoji
Gemini 2.5 Pro (I/O Edition)
Grok 4.5
58%Vocabulary61%
16wSentence Length16w
0.38Hedging0.23
5.8Bold2.5
5.0Lists2.4
0.00Emoji0.09
0.63Headings0.48
0.01Transitions0.06
Based on 16 + 27 text responses
Research
What we learned reading every model
FAQ
