Gemini 2.5 Pro Preview 06-05 vs GPT-5.4 Pro
Compare Gemini 2.5 Pro Preview 06-05 by Google AI against GPT-5.4 Pro by OpenAI, context windows of 1.0M vs 1.1M, tested across 18 shared challenges.
Our Verdict
Gemini 2.5 Pro Preview 06-05
GPT-5.4 Pro
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 Preview 06-05 is 18x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Pro Preview 06-05
Input
$1.25
24× cheaper
Output
$10.00
18× cheaper
GPT-5.4 Pro
Input
$30.00
Output
$180.00
Gemini 2.5 Pro Preview 06-05 is cheaper on both — 24× input, 18× output
Writing DNA
Style Comparison
Similarity
62%
Gemini 2.5 Pro Preview 06-05 uses 5.1x more transitions
Gemini 2.5 Pro Preview 06-05
GPT-5.4 Pro
51%Vocabulary50%
15wSentence Length35w
0.31Hedging0.70
4.8Bold7.5
4.1Lists8.3
0.00Emoji0.00
0.98Headings2.52
0.05Transitions0.01
Based on 20 + 12 text responses
Research
What we learned reading every model
FAQ
