Gemini 3.1 Pro Preview vs Gemini Pro 1.0
Compare Gemini 3.1 Pro Preview and Gemini Pro 1.0, both from Google AI, context windows of 1.0M vs 33K, tested across 26 shared challenges.
Our Verdict
Gemini 3.1 Pro Preview
Gemini Pro 1.0Runner-up
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — bigger model tier, newer, bigger context window.
Gemini Pro 1.0 is 8.0x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
Gemini 3.1 Pro Preview
Input
$2.00
Output
$12.00
Gemini Pro 1.0
Input
$0.50
4.0× cheaper
Output
$1.50
8.0× cheaper
Gemini Pro 1.0 is cheaper on both — 4.0× input, 8.0× output
Writing DNA
Style Comparison
Similarity
64%
Gemini Pro 1.0 uses 2.7x more transitions
Gemini 3.1 Pro Preview
Gemini Pro 1.0
54%Vocabulary61%
18wSentence Length13w
0.29Hedging0.41
4.9Bold5.3
3.3Lists5.4
0.00Emoji0.00
0.72Headings0.46
0.14Transitions0.38
Based on 23 + 13 text responses
Research
What we learned reading every model
FAQ
