Gemini 2.0 Flash Thinking vs Gemini 3.5 Flash
Compare Gemini 2.0 Flash Thinking and Gemini 3.5 Flash, both from Google AI, context windows of 500K vs 1.0M, tested across 20 shared challenges.
Our Verdict
Gemini 3.5 Flash
Gemini 2.0 Flash ThinkingRunner-up
No community votes yet. On paper, Gemini 3.5 Flash has the edge — newer, bigger context window.
Gemini 2.0 Flash Thinking is 18x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.0 Flash Thinking
Input
$0.25
6.0× cheaper
Output
$0.50
18× cheaper
Gemini 3.5 Flash
Input
$1.50
Output
$9.00
Gemini 2.0 Flash Thinking is cheaper on both — 6.0× input, 18× output
Writing DNA
Style Comparison
Similarity
43%
Gemini 3.5 Flash uses 26.6x more headings
Gemini 2.0 Flash Thinking
Gemini 3.5 Flash
54%Vocabulary59%
15wSentence Length18w
0.64Hedging0.16
3.8Bold4.4
2.4Lists3.0
0.00Emoji0.00
0.03Headings0.89
0.30Transitions0.11
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
