Claude Sonnet 4.5 vs Gemini 3 Flash Preview
Compare Claude Sonnet 4.5 by Anthropic against Gemini 3 Flash Preview by Google AI, in 6 community votes, gemini 3 flash preview wins 80% of head-to-head duels, context windows of 200K vs 1.0M, tested across 43 shared challenges.
Image Generation: Gemini 3 Flash Preview wins 67% of votes
Reasoning: Gemini 3 Flash Preview wins 100% of votes
Our Verdict
Gemini 3 Flash PreviewWinner
Claude Sonnet 4.5Runner-up
Pick Gemini 3 Flash Preview. In 6 blind votes, Gemini 3 Flash Preview wins 80% of the time. That's not luck.
Gemini 3 Flash Preview particularly excels in Reasoning, Image Generation. Gemini 3 Flash Preview is 5.0x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
Gemini 3 Flash Preview
Input
$0.50
6.0× cheaper
Output
$3.00
5.0× cheaper
Gemini 3 Flash Preview is cheaper on both — 6.0× input, 5.0× output
Writing DNA
Style Comparison
Similarity
48%
Claude Sonnet 4.5 uses 45.2x more emoji
Claude Sonnet 4.5
Gemini 3 Flash Preview
64%Vocabulary55%
94wSentence Length18w
0.48Hedging0.42
4.9Bold7.1
8.0Lists4.5
0.45Emoji0.00
1.91Headings0.84
0.07Transitions0.07
Based on 20 + 24 text responses
Research
What we learned reading every model
FAQ
