Gemini 2.5 Pro Experimental vs Gemini 3.1 Pro Preview
Compare Gemini 2.5 Pro Experimental and Gemini 3.1 Pro Preview, both from Google AI, context windows of 1.0M vs 1.0M, tested across 42 shared challenges.
Our Verdict
Gemini 2.5 Pro Experimental
Gemini 3.1 Pro Preview
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 Experimental is 6.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Pro Experimental
Input
$1.00
2.0× cheaper
Output
$2.00
6.0× cheaper
Gemini 3.1 Pro Preview
Input
$2.00
Output
$12.00
Gemini 2.5 Pro Experimental is cheaper on both — 2.0× input, 6.0× output
Writing DNA
Style Comparison
Similarity
63%
Gemini 3.1 Pro Preview uses 1.8x more headings
Gemini 2.5 Pro Experimental
Gemini 3.1 Pro Preview
54%Vocabulary54%
15wSentence Length18w
0.35Hedging0.29
5.6Bold4.9
3.9Lists3.3
0.00Emoji0.00
0.39Headings0.72
0.17Transitions0.14
Based on 18 + 23 text responses
Research
What we learned reading every model
FAQ
