Gemini 2.5 Flash Preview (thinking) vs Gemini 2.5 Pro Preview 06-05
Compare Gemini 2.5 Flash Preview (thinking) and Gemini 2.5 Pro Preview 06-05, both from Google AI, context windows of 1.0M vs 1.0M, tested across 18 shared challenges.
Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 2.5 Flash Preview (thinking)Runner-up
No community votes yet. On paper, Gemini 2.5 Pro Preview 06-05 has the edge — bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview (thinking)
Input
$0.17
7.1× cheaper
Output
$3.50
2.9× cheaper
Gemini 2.5 Pro Preview 06-05
Input
$1.25
Output
$10.00
Gemini 2.5 Flash Preview (thinking) is cheaper on both — 7.1× input, 2.9× output
Writing DNA
Style Comparison
Similarity
55%
Gemini 2.5 Pro Preview 06-05 uses 98.0x more headings
Gemini 2.5 Flash Preview (thinking)
Gemini 2.5 Pro Preview 06-05
53%Vocabulary51%
14wSentence Length15w
0.38Hedging0.31
4.4Bold4.8
4.1Lists4.1
0.00Emoji0.00
0.00Headings0.98
0.24Transitions0.05
Based on 7 + 20 text responses
Research
What we learned reading every model
FAQ
