Claude Opus 4.1 vs Gemini 2.0 Flash Thinking
Compare Claude Opus 4.1 by Anthropic against Gemini 2.0 Flash Thinking by Google AI, context windows of 200K vs 500K, tested across 20 shared challenges.
Our Verdict
Claude Opus 4.1
Gemini 2.0 Flash ThinkingRunner-up
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, newer.
Gemini 2.0 Flash Thinking is 150x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4.1
Input
$15.00
Output
$75.00
Gemini 2.0 Flash Thinking
Input
$0.25
60× cheaper
Output
$0.50
150× cheaper
Gemini 2.0 Flash Thinking is cheaper on both — 60× input, 150× output
Writing DNA
Style Comparison
Similarity
38%
Claude Opus 4.1 uses 38.4x more emoji
Claude Opus 4.1
Gemini 2.0 Flash Thinking
61%Vocabulary54%
87wSentence Length15w
0.54Hedging0.64
5.1Bold3.8
6.7Lists2.4
0.38Emoji0.00
1.68Headings0.03
0.13Transitions0.30
Based on 17 + 13 text responses
Research
What we learned reading every model
FAQ
