Claude Sonnet 4 vs Google: Gemini 2.5 Flash Lite Preview 09-2025
Compare Claude Sonnet 4 by Anthropic against Google: Gemini 2.5 Flash Lite Preview 09-2025 by Google AI, context windows of 200K vs 1.0M, tested across 54 shared challenges.
Our Verdict
Google: Gemini 2.5 Flash Lite Preview 09-2025
Claude Sonnet 4Runner-up
No community votes yet. On paper, Google: Gemini 2.5 Flash Lite Preview 09-2025 has the edge — newer, bigger context window.
Google: Gemini 2.5 Flash Lite Preview 09-2025 is 38x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Sonnet 4
Input
$3.00
Output
$15.00
Google: Gemini 2.5 Flash Lite Preview 09-2025
Input
$0.10
30× cheaper
Output
$0.40
38× cheaper
Google: Gemini 2.5 Flash Lite Preview 09-2025 is cheaper on both — 30× input, 38× output
Writing DNA
Style Comparison
Similarity
41%
Claude Sonnet 4 uses 87.9x more emoji
Claude Sonnet 4
Google: Gemini 2.5 Flash Lite Preview 09-2025
62%Vocabulary52%
111wSentence Length19w
0.40Hedging0.35
5.0Bold6.3
9.3Lists2.8
0.88Emoji0.00
2.16Headings0.74
0.33Transitions0.12
Based on 17 + 22 text responses
Research
What we learned reading every model
FAQ
