Gemini 1.5 Pro vs Gemini 2.5 Pro Experimental
Compare Gemini 1.5 Pro and Gemini 2.5 Pro Experimental, both from Google AI, in 2 community votes, gemini 1.5 pro and gemini 2.5 pro experimental are closely matched, context windows of 1.0M vs 1.0M, tested across 14 shared challenges.
Our Verdict
Gemini 2.5 Pro ExperimentalWinner
Gemini 1.5 ProRunner-up
Votes are tied. Gemini 2.5 Pro Experimental is newer and likely incorporates more recent improvements.
Gemini 2.5 Pro Experimental is 5.3x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 1.5 Pro
Input
$3.50
Output
$10.50
Gemini 2.5 Pro Experimental
Input
$1.00
3.5× cheaper
Output
$2.00
5.3× cheaper
Gemini 2.5 Pro Experimental is cheaper on both — 3.5× input, 5.3× output
Writing DNA
Style Comparison
Similarity
63%
Gemini 2.5 Pro Experimental uses 4.8x more headings
Gemini 1.5 Pro
Gemini 2.5 Pro Experimental
61%Vocabulary54%
15wSentence Length15w
0.80Hedging0.35
3.7Bold5.6
3.3Lists3.9
0.00Emoji0.00
0.08Headings0.39
0.09Transitions0.17
Based on 8 + 18 text responses
Research
What we learned reading every model
FAQ
