Claude Sonnet 4.5 vs Gemini 2.5 Pro Preview 06-05
Compare Claude Sonnet 4.5 by Anthropic against Gemini 2.5 Pro Preview 06-05 by Google AI, in 22 community votes, claude sonnet 4.5 wins 67% of head-to-head duels, context windows of 200K vs 1.0M, tested across 38 shared challenges.
Web Design: Claude Sonnet 4.5 wins 83% of votes
Image Generation: Claude Sonnet 4.5 wins 60% of votes
Conversation: Claude Sonnet 4.5 wins 75% of votes
Reasoning: Claude Sonnet 4.5 wins 100% of votes
Analysis: Gemini 2.5 Pro Preview 06-05 wins 100% of votes
Our Verdict
Claude Sonnet 4.5Winner
Gemini 2.5 Pro Preview 06-05Runner-up
Pick Claude Sonnet 4.5. In 22 blind votes, Claude Sonnet 4.5 wins 67% of the time. That's not luck.
Pick Claude Sonnet 4.5 for Reasoning, Web Design, Conversation. Pick Gemini 2.5 Pro Preview 06-05 for Analysis.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
Gemini 2.5 Pro Preview 06-05
Input
$1.25
2.4× cheaper
Output
$10.00
1.5× cheaper
Gemini 2.5 Pro Preview 06-05 is cheaper on both — 2.4× input, 1.5× output
Writing DNA
Style Comparison
Similarity
48%
Claude Sonnet 4.5 uses 45.2x more emoji
Claude Sonnet 4.5
Gemini 2.5 Pro Preview 06-05
64%Vocabulary51%
94wSentence Length15w
0.48Hedging0.31
4.9Bold4.8
8.0Lists4.1
0.45Emoji0.00
1.91Headings0.98
0.07Transitions0.05
Based on 20 + 20 text responses
Research
What we learned reading every model
FAQ
