Gemini 2.5 Flash Preview 09-2025 vs Kimi K3
Compare Gemini 2.5 Flash Preview 09-2025 by Google AI against Kimi K3 by Moonshot AI, context windows of 1.0M vs 1.0M, tested across 50 shared challenges.
Our Verdict
Gemini 2.5 Flash Preview 09-2025
Kimi K3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Flash Preview 09-2025 is 6.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview 09-2025
Input
$0.30
10× cheaper
Output
$2.50
6.0× cheaper
Kimi K3
Input
$3.00
Output
$15.00
Gemini 2.5 Flash Preview 09-2025 is cheaper on both — 10× input, 6.0× output
Writing DNA
Style Comparison
Similarity
34%
Kimi K3 uses 5.8x more emoji
Gemini 2.5 Flash Preview 09-2025
Kimi K3
53%Vocabulary58%
19wSentence Length21w
0.30Hedging0.46
5.8Bold3.6
3.1Lists3.4
0.14Emoji0.78
0.93Headings0.89
0.22Transitions0.17
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
