GLM 5 Turbo vs GPT-5.1-Codex-Mini
Compare GLM 5 Turbo by Z-ai against GPT-5.1-Codex-Mini by OpenAI, context windows of 203K vs 400K, tested across 53 shared challenges.
Our Verdict
GPT-5.1-Codex-Mini
GLM 5 TurboRunner-up
No community votes yet. On paper, GPT-5.1-Codex-Mini has the edge — bigger model tier, bigger context window, major provider backing.
Too close to call
API pricing
Cost per 1M tokens
GLM 5 Turbo
Input
$0.96
1.6× cheaper
Output
$3.20
1.9× cheaper
GPT-5.1-Codex-Mini
Input
$1.50
Output
$6.00
GLM 5 Turbo is cheaper on both — 1.6× input, 1.9× output
Writing DNA
Style Comparison
Similarity
41%
GLM 5 Turbo uses 9.3x more headings
GLM 5 Turbo
GPT-5.1-Codex-Mini
54%Vocabulary65%
18wSentence Length20w
0.24Hedging0.56
4.0Bold3.3
3.0Lists3.4
0.00Emoji0.00
0.72Headings0.08
0.17Transitions0.05
Based on 23 + 13 text responses
Research
What we learned reading every model
FAQ
