GLM 5 Turbo vs GPT-5.2
Compare GLM 5 Turbo by Z-ai against GPT-5.2 by OpenAI, context windows of 203K vs 400K, tested across 52 shared challenges.
Our Verdict
GPT-5.2
GLM 5 TurboRunner-up
No community votes yet. On paper, GPT-5.2 has the edge — bigger model tier, bigger context window, major provider backing.
GLM 5 Turbo is 4.4x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GLM 5 Turbo
Input
$0.96
1.8× cheaper
Output
$3.20
4.4× cheaper
GPT-5.2
Input
$1.75
Output
$14.00
GLM 5 Turbo is cheaper on both — 1.8× input, 4.4× output
Writing DNA
Style Comparison
Similarity
49%
GPT-5.2 uses 5.8x more emoji
GLM 5 Turbo
GPT-5.2
54%Vocabulary64%
18wSentence Length16w
0.24Hedging0.34
4.0Bold9.4
3.0Lists3.9
0.00Emoji0.06
0.72Headings0.89
0.17Transitions0.31
Based on 23 + 15 text responses
Research
What we learned reading every model
FAQ
Common questions
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