GLM 5 Turbo vs GPT-5
Compare GLM 5 Turbo by Z-ai against GPT-5 by OpenAI, context windows of 203K vs 400K, tested across 51 shared challenges.
Our Verdict
GPT-5
GLM 5 TurboRunner-up
No community votes yet. On paper, GPT-5 has the edge — bigger model tier, bigger context window, major provider backing.
GLM 5 Turbo is 3.1x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GLM 5 Turbo
Input
$0.96
1.3× cheaper
Output
$3.20
3.1× cheaper
GPT-5
Input
$1.25
Output
$10.00
GLM 5 Turbo is cheaper on both — 1.3× input, 3.1× output
Writing DNA
Style Comparison
Similarity
60%
GLM 5 Turbo uses 21.1x more bold
GLM 5 Turbo
GPT-5
54%Vocabulary65%
18wSentence Length13w
0.24Hedging0.20
4.0Bold0.2
3.0Lists4.6
0.00Emoji0.00
0.72Headings0.16
0.17Transitions0.03
Based on 23 + 16 text responses
Research
What we learned reading every model
FAQ
Common questions
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