GLM 5 Turbo vs OpenAI o4 Mini High
Compare GLM 5 Turbo by Z-ai against OpenAI o4 Mini High by OpenAI, context windows of 203K vs 200K, tested across 53 shared challenges.
Our Verdict
GLM 5 Turbo
OpenAI o4 Mini High
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
GLM 5 Turbo
Input
$0.96
1.1× cheaper
Output
$3.20
1.4× cheaper
OpenAI o4 Mini High
Input
$1.10
Output
$4.40
GLM 5 Turbo is cheaper on both — 1.1× input, 1.4× output
Writing DNA
Style Comparison
Similarity
57%
GLM 5 Turbo uses 397.2x more bold
GLM 5 Turbo
OpenAI o4 Mini High
54%Vocabulary70%
18wSentence Length18w
0.24Hedging0.33
4.0Bold0.0
3.0Lists1.3
0.00Emoji0.02
0.72Headings0.00
0.17Transitions0.04
Based on 23 + 14 text responses
Research
What we learned reading every model
FAQ
