Gemini 2.5 Flash Preview 05-20 (thinking) vs Gemini 3 Flash Preview
Compare Gemini 2.5 Flash Preview 05-20 (thinking) and Gemini 3 Flash Preview, both from Google AI, context windows of 1.0M vs 1.0M, tested across 12 shared challenges.
Our Verdict
Gemini 3 Flash Preview
Gemini 2.5 Flash Preview 05-20 (thinking)Runner-up
No community votes yet. On paper, Gemini 3 Flash Preview has the edge — bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview 05-20 (thinking)
Input
$0.15
3.3× cheaper
Output
$3.50
Gemini 3 Flash Preview
Input
$0.50
Output
$3.00
1.2× cheaper
Gemini 2.5 Flash Preview 05-20 (thinking) wins input (3.3× cheaper)·Gemini 3 Flash Preview wins output (1.2× cheaper)
Writing DNA
Style Comparison
Similarity
50%
Gemini 3 Flash Preview uses 42.0x more hedging
Gemini 2.5 Flash Preview 05-20 (thinking)
Gemini 3 Flash Preview
70%Vocabulary55%
11wSentence Length18w
0.00Hedging0.42
4.2Bold7.1
7.3Lists4.5
0.00Emoji0.00
0.00Headings0.84
0.00Transitions0.07
Based on 3 + 24 text responses
Research
What we learned reading every model
FAQ
