Gemini 2.5 Flash Preview vs Google: Gemini 3.1 Flash Lite
Compare Gemini 2.5 Flash Preview and Google: Gemini 3.1 Flash Lite, both from Google AI, context windows of 1.0M vs 1.0M, tested across 26 shared challenges.
Our Verdict
Gemini 2.5 Flash Preview
Google: Gemini 3.1 Flash Lite
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview
Input
$0.15
1.7× cheaper
Output
$0.60
2.5× cheaper
Google: Gemini 3.1 Flash Lite
Input
$0.25
Output
$1.50
Gemini 2.5 Flash Preview is cheaper on both — 1.7× input, 2.5× output
Writing DNA
Style Comparison
Similarity
49%
Google: Gemini 3.1 Flash Lite uses 10.6x more headings
Gemini 2.5 Flash Preview
Google: Gemini 3.1 Flash Lite
51%Vocabulary59%
15wSentence Length17w
0.70Hedging0.29
4.1Bold5.5
3.3Lists3.3
0.00Emoji0.00
0.09Headings0.93
0.24Transitions0.11
Based on 12 + 27 text responses
Research
What we learned reading every model
FAQ
