Google: Gemini 2.5 Flash Preview 09-2025 vs Z.ai: GLM 5.2
Compare Google: Gemini 2.5 Flash Preview 09-2025 by Google AI against Z.ai: GLM 5.2 by Zhipu AI, context windows of 1.0M vs 1.0M, tested across 50 shared challenges.
Our Verdict
Google: Gemini 2.5 Flash Preview 09-2025
Z.ai: GLM 5.2
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
Google: Gemini 2.5 Flash Preview 09-2025
Input
$0.30
4.7× cheaper
Output
$2.50
1.8× cheaper
Z.ai: GLM 5.2
Input
$1.40
Output
$4.40
Google: Gemini 2.5 Flash Preview 09-2025 is cheaper on both — 4.7× input, 1.8× output
Writing DNA
Style Comparison
Similarity
41%
Google: Gemini 2.5 Flash Preview 09-2025 uses 13.5x more emoji
Google: Gemini 2.5 Flash Preview 09-2025
Z.ai: GLM 5.2
53%Vocabulary56%
19wSentence Length18w
0.30Hedging0.27
5.8Bold3.7
3.1Lists2.8
0.14Emoji0.00
0.93Headings0.56
0.22Transitions0.24
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
