Google: Gemini 2.5 Flash Preview 09-2025 vs Grok 3
Compare Google: Gemini 2.5 Flash Preview 09-2025 by Google AI against Grok 3 by xAI, context windows of 1.0M vs 128K, tested across 50 shared challenges.
Our Verdict
Google: Gemini 2.5 Flash Preview 09-2025
Grok 3Runner-up
No community votes yet. On paper, Google: Gemini 2.5 Flash Preview 09-2025 has the edge — newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
Google: Gemini 2.5 Flash Preview 09-2025
Input
$0.30
Output
$2.50
Grok 3
Input
—
Output
—
Writing DNA
Style Comparison
Similarity
63%
Google: Gemini 2.5 Flash Preview 09-2025 uses 3.4x more emoji
Google: Gemini 2.5 Flash Preview 09-2025
Grok 3
53%Vocabulary49%
19wSentence Length18w
0.30Hedging0.94
5.8Bold2.5
3.1Lists3.0
0.14Emoji0.04
0.93Headings0.65
0.22Transitions0.08
Based on 22 + 17 text responses
Research
What we learned reading every model
FAQ
