Claude Sonnet 5 vs Gemini 1.5 Pro
Compare Claude Sonnet 5 by Anthropic against Gemini 1.5 Pro by Google AI, context windows of 1.0M vs 1.0M, tested across 18 shared challenges.
Our Verdict
Claude Sonnet 5
Gemini 1.5 Pro
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
Claude Sonnet 5
Input
$2.00
1.8× cheaper
Output
$10.00
1.1× cheaper
Gemini 1.5 Pro
Input
$3.50
Output
$10.50
Claude Sonnet 5 is cheaper on both — 1.8× input, 1.1× output
Writing DNA
Style Comparison
Similarity
40%
Claude Sonnet 5 uses 79.4x more emoji
Claude Sonnet 5
Gemini 1.5 Pro
59%Vocabulary61%
35wSentence Length15w
0.53Hedging0.80
3.5Bold3.7
3.5Lists3.3
0.79Emoji0.00
1.25Headings0.08
0.06Transitions0.09
Based on 27 + 8 text responses
Research
What we learned reading every model
FAQ
