Gemini 2.5 Pro (I/O Edition) vs Grok 3 Thinking
Compare Gemini 2.5 Pro (I/O Edition) by Google AI against Grok 3 Thinking by xAI, tested across 12 shared challenges. Updated June 2026.
Which is better, Gemini 2.5 Pro (I/O Edition) or Grok 3 Thinking?
Gemini 2.5 Pro (I/O Edition) and Grok 3 Thinking are both competitive models. Compare their real outputs side by side below.
Key Differences Between Gemini 2.5 Pro (I/O Edition) and Grok 3 Thinking
Gemini 2.5 Pro (I/O Edition) is made by google while Grok 3 Thinking is from xai.
API pricing
Per 1M tokens
Gemini 2.5 Pro (I/O Edition)
Input
$1.25
Output
$10.00
Grok 3 Thinking
Input
—
Output
—
Our Verdict
Gemini 2.5 Pro (I/O Edition)
Grok 3 Thinking
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
Writing DNA
Style Comparison
Similarity
41%
Grok 3 Thinking uses 21.2x more transitions
Gemini 2.5 Pro (I/O Edition)
Grok 3 Thinking
58%Vocabulary46%
16wSentence Length19w
0.38Hedging1.11
5.8Bold3.3
5.0Lists2.6
0.00Emoji0.00
0.63Headings0.64
0.01Transitions0.25
Based on 16 + 6 text responses
FAQ
