Gemini 2.5 Pro Preview 06-05 vs Gemini 3.5 Flash
Compare Gemini 2.5 Pro Preview 06-05 and Gemini 3.5 Flash, both from Google AI, context windows of 1.0M vs 1.0M, tested across 44 shared challenges.
Our Verdict
Gemini 2.5 Pro Preview 06-05
Gemini 3.5 Flash
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 Pro Preview 06-05
Input
$1.25
1.2× cheaper
Output
$10.00
Gemini 3.5 Flash
Input
$1.50
Output
$9.00
1.1× cheaper
Gemini 2.5 Pro Preview 06-05 wins input (1.2× cheaper)·Gemini 3.5 Flash wins output (1.1× cheaper)
Writing DNA
Style Comparison
Similarity
73%
Gemini 3.5 Flash uses 2.1x more transitions
Gemini 2.5 Pro Preview 06-05
Gemini 3.5 Flash
51%Vocabulary59%
15wSentence Length18w
0.31Hedging0.16
4.8Bold4.4
4.1Lists3.0
0.00Emoji0.00
0.98Headings0.89
0.05Transitions0.11
Based on 20 + 27 text responses
Research
What we learned reading every model
FAQ
