ChatGPT-4o (March 2025) vs Gemini Pro 1.0
Compare ChatGPT-4o (March 2025) by OpenAI against Gemini Pro 1.0 by Google AI, context windows of 128K vs 33K, tested across 15 shared challenges.
Our Verdict
ChatGPT-4o (March 2025)
Gemini Pro 1.0Runner-up
No community votes yet. On paper, ChatGPT-4o (March 2025) has the edge — bigger model tier, newer, bigger context window.
Gemini Pro 1.0 is 10x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
ChatGPT-4o (March 2025)
Input
$5.00
Output
$15.00
Gemini Pro 1.0
Input
$0.50
10× cheaper
Output
$1.50
10× cheaper
Gemini Pro 1.0 is cheaper on both — 10× input, 10× output
Writing DNA
Style Comparison
Similarity
34%
ChatGPT-4o (March 2025) uses 94.5x more emoji
ChatGPT-4o (March 2025)
Gemini Pro 1.0
55%Vocabulary61%
24wSentence Length13w
0.52Hedging0.41
3.3Bold5.3
6.0Lists5.4
0.94Emoji0.00
0.63Headings0.46
0.05Transitions0.38
Based on 15 + 13 text responses
Research
What we learned reading every model
FAQ
