Google: Gemini 2.5 Flash Preview 09-2025 vs Google: Gemini 3.1 Flash Lite
Compare Google: Gemini 2.5 Flash Preview 09-2025 and Google: Gemini 3.1 Flash Lite, both from Google AI, context windows of 1.0M vs 1.0M, tested across 50 shared challenges.
Our Verdict
Google: Gemini 2.5 Flash Preview 09-2025
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
Google: Gemini 2.5 Flash Preview 09-2025
Input
$0.30
Output
$2.50
Google: Gemini 3.1 Flash Lite
Input
$0.25
1.2× cheaper
Output
$1.50
1.7× cheaper
Google: Gemini 3.1 Flash Lite is cheaper on both — 1.2× input, 1.7× output
Writing DNA
Style Comparison
Similarity
40%
Google: Gemini 2.5 Flash Preview 09-2025 uses 13.5x more emoji
Google: Gemini 2.5 Flash Preview 09-2025
Google: Gemini 3.1 Flash Lite
53%Vocabulary59%
19wSentence Length17w
0.30Hedging0.29
5.8Bold5.5
3.1Lists3.3
0.14Emoji0.00
0.93Headings0.93
0.22Transitions0.11
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
