Google: Gemini 2.5 Flash Preview 09-2025 vs Gemini 2.5 Flash Preview (thinking)
Compare Google: Gemini 2.5 Flash Preview 09-2025 and Gemini 2.5 Flash Preview (thinking), both from Google AI, context windows of 1.0M vs 1.0M, tested across 20 shared challenges.
Our Verdict
Google: Gemini 2.5 Flash Preview 09-2025
Gemini 2.5 Flash Preview (thinking)Runner-up
No community votes yet. On paper, Google: Gemini 2.5 Flash Preview 09-2025 has the edge — bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Google: Gemini 2.5 Flash Preview 09-2025
Input
$0.30
Output
$2.50
1.4× cheaper
Gemini 2.5 Flash Preview (thinking)
Input
$0.17
1.7× cheaper
Output
$3.50
Gemini 2.5 Flash Preview (thinking) wins input (1.7× cheaper)·Google: Gemini 2.5 Flash Preview 09-2025 wins output (1.4× cheaper)
Writing DNA
Style Comparison
Similarity
43%
Google: Gemini 2.5 Flash Preview 09-2025 uses 13.5x more emoji
Google: Gemini 2.5 Flash Preview 09-2025
Gemini 2.5 Flash Preview (thinking)
53%Vocabulary53%
19wSentence Length14w
0.30Hedging0.38
5.8Bold4.4
3.1Lists4.1
0.14Emoji0.00
0.93Headings0.00
0.22Transitions0.24
Based on 22 + 7 text responses
Research
What we learned reading every model
FAQ
